diff --git a/.gitignore b/.gitignore
index 2bf50090..d6f14aca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # Files
 .DS_Store
 .ruby-version
+test.html
 test.sass
 npm-debug.log
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e1c829a..8b1eefef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,51 @@
 * #2231 Add `.has-text-weight-medium` helper
 * #2224 Add customizable border radius to progress bar
 
+### New variables
+
+#### Initial variables
+
+* `$block-spacing`
+
+#### Base
+
+* `$body-font-size`
+* `$small-font-size`
+* `$pre-font-size`
+* `$pre-padding`
+* `$pre-code-font-size`
+
+#### Components
+
+* `$card-header-padding`
+* `$card-content-padding`
+* `$card-media-margin`
+* `$dropdown-menu-min-width`
+* `$dropdown-content-padding-bottom`
+* `$dropdown-content-padding-top`
+* `$level-item-spacing`
+* `$menu-list-line-height`
+* `$menu-list-link-padding`
+* `$menu-nested-list-margin`
+* `$menu-nested-list-padding-left`
+* `$menu-label-font-size`
+* `$menu-label-letter-spacing`
+* `$menu-label-spacing`
+* `$pagination-item-font-size`
+* `$pagination-item-margin`
+* `$pagination-item-padding-left`
+* `$pagination-item-padding-right`
+* `$panel-margin`
+* `$panel-tabs-font-size`
+
+#### Elements
+
+* `$container-offset`
+
+#### Grid
+
+* `$tile-spacing`
+
 ### Improvements
 
 * #2396 Update docs with webpack 4 example
diff --git a/docs/css/bulma-docs.css b/docs/css/bulma-docs.css
index e8fe032b..9c95c334 100644
--- a/docs/css/bulma-docs.css
+++ b/docs/css/bulma-docs.css
@@ -1,23 +1,11 @@
 @charset "UTF-8";
 /*! bulma.io v0.7.4 | MIT License | github.com/jgthms/bulma */
-@-webkit-keyframes spinAround {
-  from {
-    -webkit-transform: rotate(0deg);
-            transform: rotate(0deg);
-  }
-  to {
-    -webkit-transform: rotate(359deg);
-            transform: rotate(359deg);
-  }
-}
 @keyframes spinAround {
   from {
-    -webkit-transform: rotate(0deg);
-            transform: rotate(0deg);
+    transform: rotate(0deg);
   }
   to {
-    -webkit-transform: rotate(359deg);
-            transform: rotate(359deg);
+    transform: rotate(359deg);
   }
 }
 
@@ -44,10 +32,8 @@
   pointer-events: none;
   position: absolute;
   top: 50%;
-  -webkit-transform: rotate(-45deg);
-          transform: rotate(-45deg);
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  transform: rotate(-45deg);
+  transform-origin: center;
   width: 0.625em;
 }
 
@@ -86,10 +72,8 @@
   left: 50%;
   position: absolute;
   top: 50%;
-  -webkit-transform: translateX(-50%) translateY(-50%) rotate(45deg);
-          transform: translateX(-50%) translateY(-50%) rotate(45deg);
-  -webkit-transform-origin: center center;
-          transform-origin: center center;
+  transform: translateX(-50%) translateY(-50%) rotate(45deg);
+  transform-origin: center center;
 }
 
 .delete::before, .modal-close::before {
@@ -138,8 +122,7 @@
 }
 
 .button.is-loading::after, .select.is-loading::after, .control.is-loading::after, .loader {
-  -webkit-animation: spinAround 500ms infinite linear;
-          animation: spinAround 500ms infinite linear;
+  animation: spinAround 500ms infinite linear;
   border: 2px solid #dbdbdb;
   border-radius: 290486px;
   border-right-color: transparent;
@@ -342,10 +325,7 @@ html {
   overflow-x: hidden;
   overflow-y: scroll;
   text-rendering: optimizeLegibility;
-  -webkit-text-size-adjust: 100%;
-     -moz-text-size-adjust: 100%;
-      -ms-text-size-adjust: 100%;
-          text-size-adjust: 100%;
+  text-size-adjust: 100%;
 }
 
 article,
@@ -375,7 +355,7 @@ pre {
 
 body {
   color: #4a4a4a;
-  font-size: 1rem;
+  font-size: 1em;
   font-weight: 400;
   line-height: 1.5;
 }
@@ -1574,7 +1554,7 @@ a.has-text-danger:hover, a.has-text-danger:focus {
 }
 
 .is-relative {
-  position: relative;
+  position: relative !important;
 }
 
 .box {
@@ -2777,6 +2757,7 @@ fieldset[disabled] .button {
 
 .buttons.has-addons .button.is-expanded {
   flex-grow: 1;
+  flex-shrink: 1;
 }
 
 .buttons.is-centered {
@@ -3662,8 +3643,7 @@ fieldset[disabled] .select select:hover {
   position: absolute;
   right: 0.625em;
   top: 0.625em;
-  -webkit-transform: none;
-          transform: none;
+  transform: none;
 }
 
 .select.is-loading.is-small:after {
@@ -4246,6 +4226,7 @@ fieldset[disabled] .select select:hover {
 
 .field.has-addons .control.is-expanded {
   flex-grow: 1;
+  flex-shrink: 1;
 }
 
 .field.has-addons.has-addons-centered {
@@ -4720,14 +4701,10 @@ fieldset[disabled] .select select:hover {
 }
 
 .progress:indeterminate {
-  -webkit-animation-duration: 1.5s;
-          animation-duration: 1.5s;
-  -webkit-animation-iteration-count: infinite;
-          animation-iteration-count: infinite;
-  -webkit-animation-name: moveIndeterminate;
-          animation-name: moveIndeterminate;
-  -webkit-animation-timing-function: linear;
-          animation-timing-function: linear;
+  animation-duration: 1.5s;
+  animation-iteration-count: infinite;
+  animation-name: moveIndeterminate;
+  animation-timing-function: linear;
   background-color: #dbdbdb;
   background-image: linear-gradient(to right, #4a4a4a 30%, #dbdbdb 30%);
   background-position: top left;
@@ -4915,15 +4892,6 @@ fieldset[disabled] .select select:hover {
   height: 1.5rem;
 }
 
-@-webkit-keyframes moveIndeterminate {
-  from {
-    background-position: 200% 0;
-  }
-  to {
-    background-position: -200% 0;
-  }
-}
-
 @keyframes moveIndeterminate {
   from {
     background-position: 200% 0;
@@ -5308,10 +5276,8 @@ fieldset[disabled] .select select:hover {
   left: 50%;
   position: absolute;
   top: 50%;
-  -webkit-transform: translateX(-50%) translateY(-50%) rotate(45deg);
-          transform: translateX(-50%) translateY(-50%) rotate(45deg);
-  -webkit-transform-origin: center center;
-          transform-origin: center center;
+  transform: translateX(-50%) translateY(-50%) rotate(45deg);
+  transform-origin: center center;
 }
 
 .tag:not(body).is-delete::before {
@@ -5653,7 +5619,7 @@ a.tag:hover {
 }
 
 .card .media:not(:last-child) {
-  margin-bottom: 0.75rem;
+  margin-bottom: 1.5rem;
 }
 
 .dropdown {
@@ -6305,7 +6271,7 @@ a.list-item {
 }
 
 .modal-card-foot .button:not(:last-child) {
-  margin-right: 10px;
+  margin-right: 0.5em;
 }
 
 .modal-card-body {
@@ -7019,12 +6985,9 @@ body.has-navbar-fixed-bottom {
   height: 1px;
   left: calc(50% - 8px);
   position: absolute;
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  transform-origin: center;
   transition-duration: 86ms;
-  transition-property: background-color, opacity, -webkit-transform;
   transition-property: background-color, opacity, transform;
-  transition-property: background-color, opacity, transform, -webkit-transform;
   transition-timing-function: ease-out;
   width: 16px;
 }
@@ -7046,8 +7009,7 @@ body.has-navbar-fixed-bottom {
 }
 
 .navbar-burger.is-active span:nth-child(1) {
-  -webkit-transform: translateY(5px) rotate(45deg);
-          transform: translateY(5px) rotate(45deg);
+  transform: translateY(5px) rotate(45deg);
 }
 
 .navbar-burger.is-active span:nth-child(2) {
@@ -7055,8 +7017,7 @@ body.has-navbar-fixed-bottom {
 }
 
 .navbar-burger.is-active span:nth-child(3) {
-  -webkit-transform: translateY(-5px) rotate(-45deg);
-          transform: translateY(-5px) rotate(-45deg);
+  transform: translateY(-5px) rotate(-45deg);
 }
 
 .navbar-menu {
@@ -7269,8 +7230,7 @@ a.navbar-item:focus, a.navbar-item:focus-within, a.navbar-item:hover, a.navbar-i
     align-items: stretch;
   }
   .navbar-item.has-dropdown-up .navbar-link::after {
-    -webkit-transform: rotate(135deg) translate(0.25em, -0.25em);
-            transform: rotate(135deg) translate(0.25em, -0.25em);
+    transform: rotate(135deg) translate(0.25em, -0.25em);
   }
   .navbar-item.has-dropdown-up .navbar-dropdown {
     border-bottom: 2px solid #dbdbdb;
@@ -7286,8 +7246,7 @@ a.navbar-item:focus, a.navbar-item:focus-within, a.navbar-item:hover, a.navbar-i
   .navbar.is-spaced .navbar-item.is-active .navbar-dropdown, .navbar-item.is-active .navbar-dropdown.is-boxed, .navbar.is-spaced .navbar-item.is-hoverable:focus .navbar-dropdown, .navbar-item.is-hoverable:focus .navbar-dropdown.is-boxed, .navbar.is-spaced .navbar-item.is-hoverable:focus-within .navbar-dropdown, .navbar-item.is-hoverable:focus-within .navbar-dropdown.is-boxed, .navbar.is-spaced .navbar-item.is-hoverable:hover .navbar-dropdown, .navbar-item.is-hoverable:hover .navbar-dropdown.is-boxed {
     opacity: 1;
     pointer-events: auto;
-    -webkit-transform: translateY(0);
-            transform: translateY(0);
+    transform: translateY(0);
   }
   .navbar-menu {
     flex-grow: 1;
@@ -7338,12 +7297,9 @@ a.navbar-item:focus, a.navbar-item:focus-within, a.navbar-item:hover, a.navbar-i
     opacity: 0;
     pointer-events: none;
     top: calc(100% + (-4px));
-    -webkit-transform: translateY(-5px);
-            transform: translateY(-5px);
+    transform: translateY(-5px);
     transition-duration: 86ms;
-    transition-property: opacity, -webkit-transform;
     transition-property: opacity, transform;
-    transition-property: opacity, transform, -webkit-transform;
   }
   .navbar-dropdown.is-right {
     left: auto;
@@ -7449,10 +7405,10 @@ a.navbar-item:focus, a.navbar-item:focus-within, a.navbar-item:hover, a.navbar-i
 .pagination-link,
 .pagination-ellipsis {
   font-size: 1em;
-  padding-left: 0.5em;
-  padding-right: 0.5em;
   justify-content: center;
   margin: 0.25rem;
+  padding-left: 0.5em;
+  padding-right: 0.5em;
   text-align: center;
 }
 
@@ -9646,8 +9602,6 @@ label.panel-block:hover {
   flex-basis: 0;
   flex-grow: 1;
   flex-shrink: 1;
-  min-height: -webkit-min-content;
-  min-height: -moz-min-content;
   min-height: min-content;
 }
 
@@ -10577,8 +10531,7 @@ label.panel-block:hover {
   min-width: 100%;
   position: absolute;
   top: 50%;
-  -webkit-transform: translate3d(-50%, -50%, 0);
-          transform: translate3d(-50%, -50%, 0);
+  transform: translate3d(-50%, -50%, 0);
 }
 
 .hero-video.is-transparent {
@@ -10853,8 +10806,7 @@ label.panel-block:hover {
 }
 
 .bd-category.is-active .bd-category-toggle .icon {
-  -webkit-transform: rotate(180deg);
-          transform: rotate(180deg);
+  transform: rotate(180deg);
 }
 
 .bd-category.is-active .bd-category-list {
@@ -10879,12 +10831,9 @@ label.panel-block:hover {
 
 .bd-category-toggle .icon {
   font-size: 0.75rem;
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  transform-origin: center;
   transition-duration: 86ms;
-  transition-property: -webkit-transform;
   transition-property: transform;
-  transition-property: transform, -webkit-transform;
 }
 
 .bd-category-name {
@@ -11676,20 +11625,15 @@ svg {
   display: block;
   opacity: 0;
   pointer-events: none;
-  -webkit-transform: scale(1.1);
-          transform: scale(1.1);
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  transform: scale(1.1);
+  transform-origin: center;
   transition-duration: 172ms;
-  transition-property: opacity, -webkit-transform;
   transition-property: opacity, transform;
-  transition-property: opacity, transform, -webkit-transform;
 }
 
 .bd-focus-item:hover::before {
   opacity: 1;
-  -webkit-transform: scale(1);
-          transform: scale(1);
+  transform: scale(1);
 }
 
 .bd-focus-item:hover .subtitle {
@@ -11883,41 +11827,23 @@ svg {
   opacity: 1;
 }
 
-@-webkit-keyframes introSpinner {
-  from {
-    opacity: 0;
-    -webkit-transform: scale(1.14);
-            transform: scale(1.14);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
 @keyframes introSpinner {
   from {
     opacity: 0;
-    -webkit-transform: scale(1.14);
-            transform: scale(1.14);
+    transform: scale(1.14);
   }
   to {
     opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
+    transform: scale(1);
   }
 }
 
 .intro-spinner,
 .intro-shadow {
-  -webkit-animation-duration: 500ms;
-          animation-duration: 500ms;
+  animation-duration: 500ms;
   animation-easing-function: ease-out;
-  -webkit-animation-fill-mode: both;
-          animation-fill-mode: both;
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  animation-fill-mode: both;
+  transform-origin: center;
 }
 
 .intro-spinner {
@@ -11926,13 +11852,11 @@ svg {
   position: absolute;
   right: 0;
   top: 0;
-  -webkit-animation-name: introSpinner;
-          animation-name: introSpinner;
+  animation-name: introSpinner;
 }
 
 .intro-spinner::before {
-  -webkit-animation: spinAround 500ms infinite linear;
-          animation: spinAround 500ms infinite linear;
+  animation: spinAround 500ms infinite linear;
   border: 2px solid #dbdbdb;
   border-radius: 290486px;
   border-right-color: transparent;
@@ -11951,29 +11875,14 @@ svg {
   width: 1.5em;
 }
 
-@-webkit-keyframes introShadow {
-  from {
-    opacity: 0;
-    -webkit-transform: scale(0.86);
-            transform: scale(0.86);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
 @keyframes introShadow {
   from {
     opacity: 0;
-    -webkit-transform: scale(0.86);
-            transform: scale(0.86);
+    transform: scale(0.86);
   }
   to {
     opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
+    transform: scale(1);
   }
 }
 
@@ -11988,8 +11897,7 @@ svg {
   background-repeat: no-repeat;
   background-size: cover;
   box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.2);
-  -webkit-animation-name: introShadow;
-          animation-name: introShadow;
+  animation-name: introShadow;
 }
 
 .intro-iframe {
@@ -12267,9 +12175,7 @@ svg {
 
 .bd-footer-star {
   transition-duration: 86ms;
-  transition-property: box-shadow, -webkit-transform;
   transition-property: box-shadow, transform;
-  transition-property: box-shadow, transform, -webkit-transform;
   will-change: box-shadow, transform;
 }
 
@@ -12287,8 +12193,7 @@ svg {
 
 .bd-footer-star:hover {
   box-shadow: 0 3rem 3rem -1.25rem rgba(10, 10, 10, 0.1);
-  -webkit-transform: translateY(-0.5rem);
-          transform: translateY(-0.5rem);
+  transform: translateY(-0.5rem);
 }
 
 .bd-footer-star:hover .bd-footer-title,
@@ -12655,10 +12560,8 @@ svg {
   position: absolute;
   right: 0;
   top: 100%;
-  -webkit-transform: scaleY(0);
-          transform: scaleY(0);
-  -webkit-transform-origin: center top;
-          transform-origin: center top;
+  transform: scaleY(0);
+  transform-origin: center top;
 }
 
 @media screen and (max-width: 1023px) {
@@ -13720,16 +13623,12 @@ svg {
 }
 
 .bd-more-loves .button span {
-  -webkit-transform-origin: center center;
-          transform-origin: center center;
-  transition: -webkit-transform 86ms ease-out;
+  transform-origin: center center;
   transition: transform 86ms ease-out;
-  transition: transform 86ms ease-out, -webkit-transform 86ms ease-out;
 }
 
 .bd-more-loves .button:hover span {
-  -webkit-transform: scale(1.04);
-          transform: scale(1.04);
+  transform: scale(1.04);
 }
 
 @media screen and (max-width: 768px) {
@@ -13769,8 +13668,7 @@ svg {
 }
 
 .bd-rainbow {
-  -webkit-animation: rainbow 8s ease infinite;
-          animation: rainbow 8s ease infinite;
+  animation: rainbow 8s ease infinite;
   background-image: linear-gradient(124deg, #ff470f, #ff3860, #b86bff, #3273dc);
   background-size: 800% 800%;
 }
@@ -13780,18 +13678,6 @@ svg {
   color: white;
 }
 
-@-webkit-keyframes rainbow {
-  0% {
-    background-position: 1% 80%;
-  }
-  50% {
-    background-position: 99% 20%;
-  }
-  100% {
-    background-position: 1% 80%;
-  }
-}
-
 @keyframes rainbow {
   0% {
     background-position: 1% 80%;
@@ -14076,12 +13962,9 @@ svg {
 }
 
 .bd-banner .button {
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  transform-origin: center;
   transition-duration: 86ms;
-  transition-property: -webkit-transform;
   transition-property: transform;
-  transition-property: transform, -webkit-transform;
 }
 
 .bd-banner:hover {
@@ -14094,8 +13977,7 @@ svg {
 }
 
 .bd-banner:hover .button {
-  -webkit-transform: scale(1.05);
-          transform: scale(1.05);
+  transform: scale(1.05);
 }
 
 .bd-banner-background {
@@ -14265,15 +14147,6 @@ svg {
   }
 }
 
-@-webkit-keyframes fadeIn {
-  from {
-    opacity: 0;
-  }
-  to {
-    opacity: 1;
-  }
-}
-
 @keyframes fadeIn {
   from {
     opacity: 0;
@@ -14283,25 +14156,12 @@ svg {
   }
 }
 
-@-webkit-keyframes zoomIn {
-  from {
-    -webkit-transform: scale(0.8);
-            transform: scale(0.8);
-  }
-  to {
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
 @keyframes zoomIn {
   from {
-    -webkit-transform: scale(0.8);
-            transform: scale(0.8);
+    transform: scale(0.8);
   }
   to {
-    -webkit-transform: scale(1);
-            transform: scale(1);
+    transform: scale(1);
   }
 }
 
@@ -14440,23 +14300,18 @@ svg {
 
 .bd-book-modal .bd-book-modal-background,
 .bd-book-modal .modal-content {
-  -webkit-animation-duration: 250ms;
-          animation-duration: 250ms;
+  animation-duration: 250ms;
   animation-easing-function: ease-out;
-  -webkit-animation-fill-mode: both;
-          animation-fill-mode: both;
+  animation-fill-mode: both;
 }
 
 .bd-book-modal .bd-book-modal-background {
-  -webkit-animation-name: fadeIn;
-          animation-name: fadeIn;
+  animation-name: fadeIn;
 }
 
 .bd-book-modal .modal-content {
-  -webkit-animation-name: zoomIn;
-          animation-name: zoomIn;
-  -webkit-transform-origin: center;
-          transform-origin: center;
+  animation-name: zoomIn;
+  transform-origin: center;
 }
 
 .bd-book-modal-cover {
@@ -14564,8 +14419,7 @@ svg {
 
 .native-flex:hover .native-cta {
   box-shadow: 0 1rem 2rem 0 rgba(10, 10, 10, 0.1);
-  -webkit-transform: translateY(-0.25rem);
-          transform: translateY(-0.25rem);
+  transform: translateY(-0.25rem);
 }
 
 .native-img {
@@ -14609,9 +14463,7 @@ svg {
   height: auto;
   padding: 0.5em 1em;
   transition-duration: 172ms;
-  transition-property: box-shadow, -webkit-transform;
   transition-property: box-shadow, transform;
-  transition-property: box-shadow, transform, -webkit-transform;
   will-change: box-shadow, transform;
 }
 
@@ -14649,316 +14501,182 @@ svg {
   }
 }
 
-@-webkit-keyframes bdGrow {
-  from {
-    -webkit-transform: scale(0);
-            transform: scale(0);
-  }
-  to {
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
 @keyframes bdGrow {
   from {
-    -webkit-transform: scale(0);
-            transform: scale(0);
+    transform: scale(0);
   }
   to {
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
-@-webkit-keyframes bdSlideDown {
-  from {
-    opacity: 0;
-    -webkit-transform: translateY(-1rem);
-            transform: translateY(-1rem);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: translateY(0);
-            transform: translateY(0);
+    transform: scale(1);
   }
 }
 
 @keyframes bdSlideDown {
   from {
     opacity: 0;
-    -webkit-transform: translateY(-1rem);
-            transform: translateY(-1rem);
+    transform: translateY(-1rem);
   }
   to {
     opacity: 1;
-    -webkit-transform: translateY(0);
-            transform: translateY(0);
-  }
-}
-
-@-webkit-keyframes bdSlideUp {
-  from {
-    opacity: 0;
-    -webkit-transform: translateY(1rem);
-            transform: translateY(1rem);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: translateY(0);
-            transform: translateY(0);
+    transform: translateY(0);
   }
 }
 
 @keyframes bdSlideUp {
   from {
     opacity: 0;
-    -webkit-transform: translateY(1rem);
-            transform: translateY(1rem);
+    transform: translateY(1rem);
   }
   to {
     opacity: 1;
-    -webkit-transform: translateY(0);
-            transform: translateY(0);
+    transform: translateY(0);
   }
 }
 
 .intro-title, .intro-ghbtns,
 .intro-author, .intro-npm, .intro-buttons .button, .bd-focus-item .title, .bd-focus-item .subtitle, .bd-focus-mobile, .bd-focus-tablet, .bd-focus-desktop, .bd-focus-cube-1, .bd-focus-cube-2, .bd-focus-cube-3, .bd-focus-css3, .bd-focus-github {
-  -webkit-animation-duration: 500ms;
-          animation-duration: 500ms;
-  -webkit-animation-fill-mode: both;
-          animation-fill-mode: both;
-  -webkit-animation-timing-function: cubic-bezier(0.14, 0.71, 0.29, 0.86);
-          animation-timing-function: cubic-bezier(0.14, 0.71, 0.29, 0.86);
-  -webkit-transform-origin: center center;
-          transform-origin: center center;
+  animation-duration: 500ms;
+  animation-fill-mode: both;
+  animation-timing-function: cubic-bezier(0.14, 0.71, 0.29, 0.86);
+  transform-origin: center center;
 }
 
 .intro-title {
-  -webkit-animation-name: bdSlideDown;
-          animation-name: bdSlideDown;
+  animation-name: bdSlideDown;
 }
 
 .intro-ghbtns,
 .intro-author {
-  -webkit-animation-delay: 1s;
-          animation-delay: 1s;
-  -webkit-animation-duration: 1000ms;
-          animation-duration: 1000ms;
-  -webkit-animation-name: bdFadeIn;
-          animation-name: bdFadeIn;
+  animation-delay: 1s;
+  animation-duration: 1000ms;
+  animation-name: bdFadeIn;
 }
 
 .intro-npm {
-  -webkit-animation-delay: 250ms;
-          animation-delay: 250ms;
-  -webkit-animation-name: bdSlowIn;
-          animation-name: bdSlowIn;
+  animation-delay: 250ms;
+  animation-name: bdSlowIn;
 }
 
 .intro-buttons .button {
-  -webkit-animation-name: bdSlowIn;
-          animation-name: bdSlowIn;
+  animation-name: bdSlowIn;
 }
 
 .intro-buttons .button:first-child {
-  -webkit-animation-delay: 500ms;
-          animation-delay: 500ms;
+  animation-delay: 500ms;
 }
 
 .intro-buttons .button:last-child {
-  -webkit-animation-delay: 750ms;
-          animation-delay: 750ms;
+  animation-delay: 750ms;
 }
 
 .bd-focus-item .title {
-  -webkit-animation-name: bdSlideDown;
-          animation-name: bdSlideDown;
+  animation-name: bdSlideDown;
 }
 
 .bd-focus-item .subtitle {
-  -webkit-animation-name: bdSlideUp;
-          animation-name: bdSlideUp;
+  animation-name: bdSlideUp;
 }
 
 .bd-focus-item:nth-child(1) .title {
-  -webkit-animation-delay: 1s;
-          animation-delay: 1s;
+  animation-delay: 1s;
 }
 
 .bd-focus-item:nth-child(1) .subtitle {
-  -webkit-animation-delay: 1.125s;
-          animation-delay: 1.125s;
+  animation-delay: 1.125s;
 }
 
 .bd-focus-item:nth-child(2) .title {
-  -webkit-animation-delay: 1.5s;
-          animation-delay: 1.5s;
+  animation-delay: 1.5s;
 }
 
 .bd-focus-item:nth-child(2) .subtitle {
-  -webkit-animation-delay: 1.625s;
-          animation-delay: 1.625s;
+  animation-delay: 1.625s;
 }
 
 .bd-focus-item:nth-child(3) .title {
-  -webkit-animation-delay: 2s;
-          animation-delay: 2s;
+  animation-delay: 2s;
 }
 
 .bd-focus-item:nth-child(3) .subtitle {
-  -webkit-animation-delay: 2.125s;
-          animation-delay: 2.125s;
+  animation-delay: 2.125s;
 }
 
 .bd-focus-item:nth-child(4) .title {
-  -webkit-animation-delay: 2.5s;
-          animation-delay: 2.5s;
+  animation-delay: 2.5s;
 }
 
 .bd-focus-item:nth-child(4) .subtitle {
-  -webkit-animation-delay: 2.625s;
-          animation-delay: 2.625s;
+  animation-delay: 2.625s;
 }
 
 .bd-focus-mobile, .bd-focus-tablet, .bd-focus-desktop {
-  -webkit-animation-name: bdGrow;
-          animation-name: bdGrow;
-  -webkit-transform-origin: bottom center;
-          transform-origin: bottom center;
+  animation-name: bdGrow;
+  transform-origin: bottom center;
 }
 
 .bd-focus-mobile {
-  -webkit-animation-delay: 1s;
-          animation-delay: 1s;
+  animation-delay: 1s;
 }
 
 .bd-focus-tablet {
-  -webkit-animation-delay: 1.25s;
-          animation-delay: 1.25s;
+  animation-delay: 1.25s;
 }
 
 .bd-focus-desktop {
-  -webkit-animation-delay: 1.5s;
-          animation-delay: 1.5s;
-}
-
-@-webkit-keyframes bdCube1 {
-  0% {
-    -webkit-transform: translate3d(0, -50px, 0);
-            transform: translate3d(0, -50px, 0);
-    opacity: 0;
-  }
-  25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
-    opacity: 1;
-  }
+  animation-delay: 1.5s;
 }
 
 @keyframes bdCube1 {
   0% {
-    -webkit-transform: translate3d(0, -50px, 0);
-            transform: translate3d(0, -50px, 0);
+    transform: translate3d(0, -50px, 0);
     opacity: 0;
   }
   25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
-    opacity: 1;
-  }
-}
-
-@-webkit-keyframes bdCube2 {
-  0% {
-    -webkit-transform: translate3d(-40px, 30px, 0);
-            transform: translate3d(-40px, 30px, 0);
-    opacity: 0;
-  }
-  25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
     opacity: 1;
   }
 }
 
 @keyframes bdCube2 {
   0% {
-    -webkit-transform: translate3d(-40px, 30px, 0);
-            transform: translate3d(-40px, 30px, 0);
+    transform: translate3d(-40px, 30px, 0);
     opacity: 0;
   }
   25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
-    opacity: 1;
-  }
-}
-
-@-webkit-keyframes bdCube3 {
-  0% {
-    -webkit-transform: translate3d(40px, 30px, 0);
-            transform: translate3d(40px, 30px, 0);
-    opacity: 0;
-  }
-  25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
     opacity: 1;
   }
 }
 
 @keyframes bdCube3 {
   0% {
-    -webkit-transform: translate3d(40px, 30px, 0);
-            transform: translate3d(40px, 30px, 0);
+    transform: translate3d(40px, 30px, 0);
     opacity: 0;
   }
   25%, 100% {
-    -webkit-transform: translate3d(0, 0, 0);
-            transform: translate3d(0, 0, 0);
+    transform: translate3d(0, 0, 0);
     opacity: 1;
   }
 }
 
 .bd-focus-cube-1, .bd-focus-cube-2, .bd-focus-cube-3 {
-  -webkit-animation-direction: alternate;
-          animation-direction: alternate;
-  -webkit-animation-duration: 2000ms;
-          animation-duration: 2000ms;
-  -webkit-animation-iteration-count: infinite;
-          animation-iteration-count: infinite;
+  animation-direction: alternate;
+  animation-duration: 2000ms;
+  animation-iteration-count: infinite;
 }
 
 .bd-focus-cube-1 {
-  -webkit-animation-delay: 1.5s;
-          animation-delay: 1.5s;
-  -webkit-animation-name: bdCube1;
-          animation-name: bdCube1;
+  animation-delay: 1.5s;
+  animation-name: bdCube1;
 }
 
 .bd-focus-cube-2 {
-  -webkit-animation-name: bdCube2;
-          animation-name: bdCube2;
-  -webkit-animation-delay: 1.75s;
-          animation-delay: 1.75s;
+  animation-name: bdCube2;
+  animation-delay: 1.75s;
 }
 
 .bd-focus-cube-3 {
-  -webkit-animation-name: bdCube3;
-          animation-name: bdCube3;
-  -webkit-animation-delay: 2s;
-          animation-delay: 2s;
-}
-
-@-webkit-keyframes bdFadeIn {
-  from {
-    opacity: 0;
-  }
-  to {
-    opacity: 1;
-  }
+  animation-name: bdCube3;
+  animation-delay: 2s;
 }
 
 @keyframes bdFadeIn {
@@ -14970,292 +14688,119 @@ svg {
   }
 }
 
-@-webkit-keyframes bdSlowIn {
-  from {
-    opacity: 0;
-    -webkit-transform: scale(0.9);
-            transform: scale(0.9);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
 @keyframes bdSlowIn {
   from {
     opacity: 0;
-    -webkit-transform: scale(0.9);
-            transform: scale(0.9);
+    transform: scale(0.9);
   }
   to {
     opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
-  }
-}
-
-@-webkit-keyframes bdScaleIn {
-  from {
-    opacity: 0;
-    -webkit-transform: scale(0);
-            transform: scale(0);
-  }
-  to {
-    opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
+    transform: scale(1);
   }
 }
 
 @keyframes bdScaleIn {
   from {
     opacity: 0;
-    -webkit-transform: scale(0);
-            transform: scale(0);
+    transform: scale(0);
   }
   to {
     opacity: 1;
-    -webkit-transform: scale(1);
-            transform: scale(1);
+    transform: scale(1);
   }
 }
 
 .bd-focus-css3 {
-  -webkit-animation-delay: 2s;
-          animation-delay: 2s;
-  -webkit-animation-name: bdScaleIn;
-          animation-name: bdScaleIn;
+  animation-delay: 2s;
+  animation-name: bdScaleIn;
 }
 
 .bd-focus-github {
-  -webkit-animation-delay: 2.5s;
-          animation-delay: 2.5s;
-  -webkit-animation-duration: 1500ms;
-          animation-duration: 1500ms;
-  -webkit-animation-name: bdJellyPop;
-          animation-name: bdJellyPop;
-}
-
-@-webkit-keyframes bdJellyPop {
-  0% {
-    opacity: 0;
-    -webkit-transform: matrix3d(0.1, 0, 0, 0, 0, 0.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.1, 0, 0, 0, 0, 0.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  3.4% {
-    opacity: 1;
-    -webkit-transform: matrix3d(0.384, 0, 0, 0, 0, 0.466, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.384, 0, 0, 0, 0, 0.466, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  4.7% {
-    -webkit-transform: matrix3d(0.505, 0, 0, 0, 0, 0.639, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.505, 0, 0, 0, 0, 0.639, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  6.81% {
-    -webkit-transform: matrix3d(0.693, 0, 0, 0, 0, 0.904, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.693, 0, 0, 0, 0, 0.904, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  9.41% {
-    -webkit-transform: matrix3d(0.895, 0, 0, 0, 0, 1.151, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.895, 0, 0, 0, 0, 1.151, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  10.21% {
-    -webkit-transform: matrix3d(0.947, 0, 0, 0, 0, 1.204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.947, 0, 0, 0, 0, 1.204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  13.61% {
-    -webkit-transform: matrix3d(1.111, 0, 0, 0, 0, 1.299, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.111, 0, 0, 0, 0, 1.299, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  14.11% {
-    -webkit-transform: matrix3d(1.127, 0, 0, 0, 0, 1.298, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.127, 0, 0, 0, 0, 1.298, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  17.52% {
-    -webkit-transform: matrix3d(1.187, 0, 0, 0, 0, 1.216, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.187, 0, 0, 0, 0, 1.216, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  18.72% {
-    -webkit-transform: matrix3d(1.191, 0, 0, 0, 0, 1.169, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.191, 0, 0, 0, 0, 1.169, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  21.32% {
-    -webkit-transform: matrix3d(1.177, 0, 0, 0, 0, 1.062, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.177, 0, 0, 0, 0, 1.062, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  24.32% {
-    -webkit-transform: matrix3d(1.135, 0, 0, 0, 0, 0.964, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.135, 0, 0, 0, 0, 0.964, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  25.23% {
-    -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 0.944, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.121, 0, 0, 0, 0, 0.944, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  29.03% {
-    -webkit-transform: matrix3d(1.057, 0, 0, 0, 0, 0.907, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.057, 0, 0, 0, 0, 0.907, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  29.93% {
-    -webkit-transform: matrix3d(1.043, 0, 0, 0, 0, 0.909, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.043, 0, 0, 0, 0, 0.909, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  35.54% {
-    -webkit-transform: matrix3d(0.981, 0, 0, 0, 0, 0.966, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.981, 0, 0, 0, 0, 0.966, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  36.74% {
-    -webkit-transform: matrix3d(0.974, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.974, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  41.04% {
-    -webkit-transform: matrix3d(0.965, 0, 0, 0, 0, 1.02, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.965, 0, 0, 0, 0, 1.02, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  44.44% {
-    -webkit-transform: matrix3d(0.969, 0, 0, 0, 0, 1.029, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.969, 0, 0, 0, 0, 1.029, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  52.15% {
-    -webkit-transform: matrix3d(0.992, 0, 0, 0, 0, 1.006, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.992, 0, 0, 0, 0, 1.006, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  59.86% {
-    -webkit-transform: matrix3d(1.005, 0, 0, 0, 0, 0.991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.005, 0, 0, 0, 0, 0.991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  63.26% {
-    -webkit-transform: matrix3d(1.007, 0, 0, 0, 0, 0.993, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.007, 0, 0, 0, 0, 0.993, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  75.28% {
-    -webkit-transform: matrix3d(1.001, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.001, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  85.49% {
-    -webkit-transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  90.69% {
-    -webkit-transform: matrix3d(0.999, 0, 0, 0, 0, 0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.999, 0, 0, 0, 0, 0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
-  100% {
-    opacity: 1;
-    -webkit-transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-  }
+  animation-delay: 2.5s;
+  animation-duration: 1500ms;
+  animation-name: bdJellyPop;
 }
 
 @keyframes bdJellyPop {
   0% {
     opacity: 0;
-    -webkit-transform: matrix3d(0.1, 0, 0, 0, 0, 0.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.1, 0, 0, 0, 0, 0.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.1, 0, 0, 0, 0, 0.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   3.4% {
     opacity: 1;
-    -webkit-transform: matrix3d(0.384, 0, 0, 0, 0, 0.466, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.384, 0, 0, 0, 0, 0.466, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.384, 0, 0, 0, 0, 0.466, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   4.7% {
-    -webkit-transform: matrix3d(0.505, 0, 0, 0, 0, 0.639, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.505, 0, 0, 0, 0, 0.639, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.505, 0, 0, 0, 0, 0.639, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   6.81% {
-    -webkit-transform: matrix3d(0.693, 0, 0, 0, 0, 0.904, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.693, 0, 0, 0, 0, 0.904, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.693, 0, 0, 0, 0, 0.904, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   9.41% {
-    -webkit-transform: matrix3d(0.895, 0, 0, 0, 0, 1.151, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.895, 0, 0, 0, 0, 1.151, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.895, 0, 0, 0, 0, 1.151, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   10.21% {
-    -webkit-transform: matrix3d(0.947, 0, 0, 0, 0, 1.204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.947, 0, 0, 0, 0, 1.204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.947, 0, 0, 0, 0, 1.204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   13.61% {
-    -webkit-transform: matrix3d(1.111, 0, 0, 0, 0, 1.299, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.111, 0, 0, 0, 0, 1.299, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.111, 0, 0, 0, 0, 1.299, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   14.11% {
-    -webkit-transform: matrix3d(1.127, 0, 0, 0, 0, 1.298, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.127, 0, 0, 0, 0, 1.298, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.127, 0, 0, 0, 0, 1.298, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   17.52% {
-    -webkit-transform: matrix3d(1.187, 0, 0, 0, 0, 1.216, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.187, 0, 0, 0, 0, 1.216, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.187, 0, 0, 0, 0, 1.216, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   18.72% {
-    -webkit-transform: matrix3d(1.191, 0, 0, 0, 0, 1.169, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.191, 0, 0, 0, 0, 1.169, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.191, 0, 0, 0, 0, 1.169, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   21.32% {
-    -webkit-transform: matrix3d(1.177, 0, 0, 0, 0, 1.062, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.177, 0, 0, 0, 0, 1.062, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.177, 0, 0, 0, 0, 1.062, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   24.32% {
-    -webkit-transform: matrix3d(1.135, 0, 0, 0, 0, 0.964, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.135, 0, 0, 0, 0, 0.964, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.135, 0, 0, 0, 0, 0.964, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   25.23% {
-    -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 0.944, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.121, 0, 0, 0, 0, 0.944, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.121, 0, 0, 0, 0, 0.944, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   29.03% {
-    -webkit-transform: matrix3d(1.057, 0, 0, 0, 0, 0.907, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.057, 0, 0, 0, 0, 0.907, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.057, 0, 0, 0, 0, 0.907, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   29.93% {
-    -webkit-transform: matrix3d(1.043, 0, 0, 0, 0, 0.909, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.043, 0, 0, 0, 0, 0.909, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.043, 0, 0, 0, 0, 0.909, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   35.54% {
-    -webkit-transform: matrix3d(0.981, 0, 0, 0, 0, 0.966, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.981, 0, 0, 0, 0, 0.966, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.981, 0, 0, 0, 0, 0.966, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   36.74% {
-    -webkit-transform: matrix3d(0.974, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.974, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.974, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   41.04% {
-    -webkit-transform: matrix3d(0.965, 0, 0, 0, 0, 1.02, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.965, 0, 0, 0, 0, 1.02, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.965, 0, 0, 0, 0, 1.02, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   44.44% {
-    -webkit-transform: matrix3d(0.969, 0, 0, 0, 0, 1.029, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.969, 0, 0, 0, 0, 1.029, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.969, 0, 0, 0, 0, 1.029, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   52.15% {
-    -webkit-transform: matrix3d(0.992, 0, 0, 0, 0, 1.006, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.992, 0, 0, 0, 0, 1.006, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.992, 0, 0, 0, 0, 1.006, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   59.86% {
-    -webkit-transform: matrix3d(1.005, 0, 0, 0, 0, 0.991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.005, 0, 0, 0, 0, 0.991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.005, 0, 0, 0, 0, 0.991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   63.26% {
-    -webkit-transform: matrix3d(1.007, 0, 0, 0, 0, 0.993, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.007, 0, 0, 0, 0, 0.993, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.007, 0, 0, 0, 0, 0.993, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   75.28% {
-    -webkit-transform: matrix3d(1.001, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1.001, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1.001, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   85.49% {
-    -webkit-transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   90.69% {
-    -webkit-transform: matrix3d(0.999, 0, 0, 0, 0, 0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(0.999, 0, 0, 0, 0, 0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(0.999, 0, 0, 0, 0, 0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
   100% {
     opacity: 1;
-    -webkit-transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-            transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
+    transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
   }
 }
-
-/*# sourceMappingURL=bulma-docs.css.map */
\ No newline at end of file
diff --git a/docs/documentation/modifiers/helpers.html b/docs/documentation/modifiers/helpers.html
index 6f7ecf7d..7495dd07 100644
--- a/docs/documentation/modifiers/helpers.html
+++ b/docs/documentation/modifiers/helpers.html
@@ -35,7 +35,7 @@ breadcrumb:
       <td>Removes any <strong>padding</strong></td>
     </tr>
     <tr>
-      <th rowspan="7">Other</th>
+      <th rowspan="9">Other</th>
       <td><code>is-overlay</code></td>
       <td>Completely covers the first positioned parent</td>
     </tr>
@@ -61,7 +61,7 @@ breadcrumb:
     </tr>
     <tr>
       <td><code>is-hidden</code></td>
-      <td>Hides element</td>    
+      <td>Hides element</td>
     </tr>
     <tr>
       <td><code>is-sr-only</code></td>
diff --git a/sass/base/generic.sass b/sass/base/generic.sass
index 4a48326b..376cd5e4 100644
--- a/sass/base/generic.sass
+++ b/sass/base/generic.sass
@@ -1,18 +1,23 @@
 $body-background-color: $white !default
 $body-size: 16px !default
+$body-min-width: 300px !default
 $body-rendering: optimizeLegibility !default
 $body-family: $family-primary !default
-$body-color: $text !default
-$body-weight: $weight-normal !default
-$body-line-height: 1.5 !default
 $body-overflow-x: hidden !default
 $body-overflow-y: scroll !default
 
+$body-color: $text !default
+$body-font-size: 1em !default
+$body-weight: $weight-normal !default
+$body-line-height: 1.5 !default
+
 $code-family: $family-code !default
 $code-padding: 0.25em 0.5em 0.25em !default
 $code-weight: normal !default
 $code-size: 0.875em !default
 
+$small-font-size: 0.875em !default
+
 $hr-background-color: $background !default
 $hr-height: 2px !default
 $hr-margin: 1.5rem 0 !default
@@ -20,12 +25,16 @@ $hr-margin: 1.5rem 0 !default
 $strong-color: $text-strong !default
 $strong-weight: $weight-bold !default
 
+$pre-font-size: 0.875em !default
+$pre-padding: 1.25rem 1.5rem !default
+$pre-code-font-size: 1em !default
+
 html
   background-color: $body-background-color
   font-size: $body-size
   -moz-osx-font-smoothing: grayscale
   -webkit-font-smoothing: antialiased
-  min-width: 300px
+  min-width: $body-min-width
   overflow-x: $body-overflow-x
   overflow-y: $body-overflow-y
   text-rendering: $body-rendering
@@ -55,7 +64,7 @@ pre
 
 body
   color: $body-color
-  font-size: 1rem
+  font-size: $body-font-size
   font-weight: $body-weight
   line-height: $body-line-height
 
@@ -93,7 +102,7 @@ input[type="radio"]
   vertical-align: baseline
 
 small
-  font-size: 0.875em
+  font-size: $small-font-size
 
 span
   font-style: inherit
@@ -112,15 +121,15 @@ pre
   +overflow-touch
   background-color: $pre-background
   color: $pre
-  font-size: 0.875em
+  font-size: $pre-font-size
   overflow-x: auto
-  padding: 1.25rem 1.5rem
+  padding: $pre-padding
   white-space: pre
   word-wrap: normal
   code
     background-color: transparent
     color: currentColor
-    font-size: 1em
+    font-size: $pre-code-font-size
     padding: 0
 
 table
diff --git a/sass/base/helpers.sass b/sass/base/helpers.sass
index 59d9e0d1..bbb489dd 100644
--- a/sass/base/helpers.sass
+++ b/sass/base/helpers.sass
@@ -278,4 +278,4 @@ $displays: 'block' 'flex' 'inline' 'inline-block' 'inline-flex'
   @extend %unselectable
 
 .is-relative
-  position: relative
+  position: relative !important
diff --git a/sass/components/card.sass b/sass/components/card.sass
index ff12395f..ca231a54 100644
--- a/sass/components/card.sass
+++ b/sass/components/card.sass
@@ -4,13 +4,18 @@ $card-shadow: 0 2px 3px rgba($black, 0.1), 0 0 0 1px rgba($black, 0.1) !default
 
 $card-header-background-color: transparent !default
 $card-header-color: $text-strong !default
+$card-header-padding: 0.75rem !default
 $card-header-shadow: 0 1px 2px rgba($black, 0.1) !default
 $card-header-weight: $weight-bold !default
 
 $card-content-background-color: transparent !default
+$card-content-padding: 1.5rem !default
 
 $card-footer-background-color: transparent !default
 $card-footer-border-top: 1px solid $border !default
+$card-footer-padding: 0.75rem !default
+
+$card-media-margin: $block-spacing !default
 
 .card
   background-color: $card-background-color
@@ -31,7 +36,7 @@ $card-footer-border-top: 1px solid $border !default
   display: flex
   flex-grow: 1
   font-weight: $card-header-weight
-  padding: 0.75rem
+  padding: $card-header-padding
   &.is-centered
     justify-content: center
 
@@ -40,7 +45,7 @@ $card-footer-border-top: 1px solid $border !default
   cursor: pointer
   display: flex
   justify-content: center
-  padding: 0.75rem
+  padding: $card-header-padding
 
 .card-image
   display: block
@@ -48,7 +53,7 @@ $card-footer-border-top: 1px solid $border !default
 
 .card-content
   background-color: $card-content-background-color
-  padding: 1.5rem
+  padding: $card-content-padding
 
 .card-footer
   background-color: $card-footer-background-color
@@ -63,7 +68,7 @@ $card-footer-border-top: 1px solid $border !default
   flex-grow: 1
   flex-shrink: 0
   justify-content: center
-  padding: 0.75rem
+  padding: $card-footer-padding
   &:not(:last-child)
     border-right: $card-footer-border-top
 
@@ -71,4 +76,4 @@ $card-footer-border-top: 1px solid $border !default
 
 .card
   .media:not(:last-child)
-    margin-bottom: 0.75rem
+    margin-bottom: $card-media-margin
diff --git a/sass/components/dropdown.sass b/sass/components/dropdown.sass
index aad663a6..b6146b0a 100644
--- a/sass/components/dropdown.sass
+++ b/sass/components/dropdown.sass
@@ -1,6 +1,10 @@
+$dropdown-menu-min-width: 12rem !default
+
 $dropdown-content-background-color: $white !default
 $dropdown-content-arrow: $link !default
 $dropdown-content-offset: 4px !default
+$dropdown-content-padding-bottom: 0.5rem !default
+$dropdown-content-padding-top: 0.5rem !default
 $dropdown-content-radius: $radius !default
 $dropdown-content-shadow: 0 2px 3px rgba($black, 0.1), 0 0 0 1px rgba($black, 0.1) !default
 $dropdown-content-z: 20 !default
@@ -35,7 +39,7 @@ $dropdown-divider-background-color: $border !default
 .dropdown-menu
   display: none
   left: 0
-  min-width: 12rem
+  min-width: $dropdown-menu-min-width
   padding-top: $dropdown-content-offset
   position: absolute
   top: 100%
@@ -45,8 +49,8 @@ $dropdown-divider-background-color: $border !default
   background-color: $dropdown-content-background-color
   border-radius: $dropdown-content-radius
   box-shadow: $dropdown-content-shadow
-  padding-bottom: 0.5rem
-  padding-top: 0.5rem
+  padding-bottom: $dropdown-content-padding-bottom
+  padding-top: $dropdown-content-padding-top
 
 .dropdown-item
   color: $dropdown-item-color
diff --git a/sass/components/level.sass b/sass/components/level.sass
index a3b77168..608f291e 100644
--- a/sass/components/level.sass
+++ b/sass/components/level.sass
@@ -1,3 +1,5 @@
+$level-item-spacing: ($block-spacing / 2) !default
+
 .level
   @extend %block
   align-items: center
@@ -18,7 +20,7 @@
     .level-item
       &:not(:last-child)
         margin-bottom: 0
-        margin-right: 0.75rem
+        margin-right: $level-item-spacing
       &:not(.is-narrow)
         flex-grow: 1
   // Responsiveness
@@ -41,7 +43,7 @@
   // Responsiveness
   +mobile
     &:not(:last-child)
-      margin-bottom: 0.75rem
+      margin-bottom: $level-item-spacing
 
 .level-left,
 .level-right
@@ -55,7 +57,7 @@
     // Responsiveness
     +tablet
       &:not(:last-child)
-        margin-right: 0.75rem
+        margin-right: $level-item-spacing
 
 .level-left
   align-items: center
diff --git a/sass/components/menu.sass b/sass/components/menu.sass
index 727df360..3de7e18d 100644
--- a/sass/components/menu.sass
+++ b/sass/components/menu.sass
@@ -6,8 +6,15 @@ $menu-item-active-color: $link-invert !default
 $menu-item-active-background-color: $link !default
 
 $menu-list-border-left: 1px solid $border !default
+$menu-list-line-height: 1.25 !default
+$menu-list-link-padding: 0.5em 0.75em !default
+$menu-nested-list-margin: 0.75em !default
+$menu-nested-list-padding-left: 0.75em !default
 
 $menu-label-color: $text-light !default
+$menu-label-font-size: 0.75em !default
+$menu-label-letter-spacing: 0.1em !default
+$menu-label-spacing: 1em !default
 
 .menu
   font-size: $size-normal
@@ -20,12 +27,12 @@ $menu-label-color: $text-light !default
     font-size: $size-large
 
 .menu-list
-  line-height: 1.25
+  line-height: $menu-list-line-height
   a
     border-radius: $menu-item-radius
     color: $menu-item-color
     display: block
-    padding: 0.5em 0.75em
+    padding: $menu-list-link-padding
     &:hover
       background-color: $menu-item-hover-background-color
       color: $menu-item-hover-color
@@ -36,15 +43,15 @@ $menu-label-color: $text-light !default
   li
     ul
       border-left: $menu-list-border-left
-      margin: 0.75em
-      padding-left: 0.75em
+      margin: $menu-nested-list-margin
+      padding-left: $menu-nested-list-padding-left
 
 .menu-label
   color: $menu-label-color
-  font-size: 0.75em
-  letter-spacing: 0.1em
+  font-size: $menu-label-font-size
+  letter-spacing: $menu-label-letter-spacing
   text-transform: uppercase
   &:not(:first-child)
-    margin-top: 1em
+    margin-top: $menu-label-spacing
   &:not(:last-child)
-    margin-bottom: 1em
+    margin-bottom: $menu-label-spacing
diff --git a/sass/components/message.sass b/sass/components/message.sass
index badac5da..2e626adb 100644
--- a/sass/components/message.sass
+++ b/sass/components/message.sass
@@ -17,6 +17,7 @@ $message-body-pre-background-color: $white !default
 $message-body-pre-code-background-color: transparent !default
 
 $message-header-body-border-width: 0 !default
+$message-colors: $colors !default
 
 .message
   @extend %block
@@ -36,7 +37,7 @@ $message-header-body-border-width: 0 !default
   &.is-large
     font-size: $size-large
   // Colors
-  @each $name, $pair in $colors
+  @each $name, $pair in $message-colors
     $color: nth($pair, 1)
     $color-invert: nth($pair, 2)
     $color-lightning: max((100% - lightness($color)) - 2%, 0%)
diff --git a/sass/components/modal.sass b/sass/components/modal.sass
index b6fb1a18..c9d19796 100644
--- a/sass/components/modal.sass
+++ b/sass/components/modal.sass
@@ -102,7 +102,7 @@ $modal-card-body-padding: 20px !default
   border-top: $modal-card-foot-border-top
   .button
     &:not(:last-child)
-      margin-right: 10px
+      margin-right: 0.5em
 
 .modal-card-body
   +overflow-touch
diff --git a/sass/components/pagination.sass b/sass/components/pagination.sass
index 9b8fd036..634db969 100644
--- a/sass/components/pagination.sass
+++ b/sass/components/pagination.sass
@@ -3,6 +3,11 @@ $pagination-border-color: $grey-lighter !default
 $pagination-margin: -0.25rem !default
 $pagination-min-width: $control-height !default
 
+$pagination-item-font-size: 1em !default
+$pagination-item-margin: 0.25rem !default
+$pagination-item-padding-left: 0.5em !default
+$pagination-item-padding-right: 0.5em !default
+
 $pagination-hover-color: $link-hover !default
 $pagination-hover-border-color: $link-hover-border !default
 
@@ -56,11 +61,11 @@ $pagination-shadow-inset: inset 0 1px 2px rgba($black, 0.2)
 .pagination-ellipsis
   @extend %control
   @extend %unselectable
-  font-size: 1em
-  padding-left: 0.5em
-  padding-right: 0.5em
+  font-size: $pagination-item-font-size
   justify-content: center
-  margin: 0.25rem
+  margin: $pagination-item-margin
+  padding-left: $pagination-item-padding-left
+  padding-right: $pagination-item-padding-right
   text-align: center
 
 .pagination-previous,
diff --git a/sass/components/panel.sass b/sass/components/panel.sass
index b9d339ee..92d2cccf 100644
--- a/sass/components/panel.sass
+++ b/sass/components/panel.sass
@@ -1,3 +1,4 @@
+$panel-margin: $block-spacing !default
 $panel-item-border: 1px solid $border !default
 
 $panel-heading-background-color: $background !default
@@ -8,6 +9,7 @@ $panel-heading-radius: $radius !default
 $panel-heading-size: 1.25em !default
 $panel-heading-weight: $weight-light !default
 
+$panel-tabs-font-size: 0.875em !default
 $panel-tab-border-bottom: 1px solid $border !default
 $panel-tab-active-border-bottom-color: $link-active-border !default
 $panel-tab-active-color: $link-active !default
@@ -26,7 +28,7 @@ $panel-icon-color: $text-light !default
 .panel
   font-size: $size-normal
   &:not(:last-child)
-    margin-bottom: 1.5rem
+    margin-bottom: $panel-margin
 
 .panel-heading,
 .panel-tabs,
@@ -49,7 +51,7 @@ $panel-icon-color: $text-light !default
 .panel-tabs
   align-items: flex-end
   display: flex
-  font-size: 0.875em
+  font-size: $panel-tabs-font-size
   justify-content: center
   a
     border-bottom: $panel-tab-border-bottom
diff --git a/sass/elements/button.sass b/sass/elements/button.sass
index 207c202d..1f34141c 100644
--- a/sass/elements/button.sass
+++ b/sass/elements/button.sass
@@ -269,15 +269,16 @@ $button-static-border-color: $grey-lighter !default
           z-index: 4
       &.is-expanded
         flex-grow: 1
+        flex-shrink: 1
   &.is-centered
     justify-content: center
-    &:not(.has-addons) 
+    &:not(.has-addons)
       .button:not(.is-fullwidth)
         margin-left: 0.25rem
         margin-right: 0.25rem
   &.is-right
     justify-content: flex-end
-    &:not(.has-addons) 
+    &:not(.has-addons)
       .button:not(.is-fullwidth)
         margin-left: 0.25rem
         margin-right: 0.25rem
diff --git a/sass/elements/container.sass b/sass/elements/container.sass
index 98f249ed..c69a9936 100644
--- a/sass/elements/container.sass
+++ b/sass/elements/container.sass
@@ -1,21 +1,23 @@
+$container-offset: (2 * $gap) !default
+
 .container
   flex-grow: 1
   margin: 0 auto
   position: relative
   width: auto
   +desktop
-    max-width: $desktop - (2 * $gap)
+    max-width: $desktop - $container-offset
     &.is-fluid
       margin-left: $gap
       margin-right: $gap
       max-width: none
   +until-widescreen
     &.is-widescreen
-      max-width: $widescreen - (2 * $gap)
+      max-width: $widescreen - $container-offset
   +until-fullhd
     &.is-fullhd
-      max-width: $fullhd - (2 * $gap)
+      max-width: $fullhd - $container-offset
   +widescreen
-    max-width: $widescreen - (2 * $gap)
+    max-width: $widescreen - $container-offset
   +fullhd
-    max-width: $fullhd - (2 * $gap)
+    max-width: $fullhd - $container-offset
diff --git a/sass/elements/form.sass b/sass/elements/form.sass
index e3f7a7ea..145cbc83 100644
--- a/sass/elements/form.sass
+++ b/sass/elements/form.sass
@@ -471,6 +471,7 @@ $help-size: $size-small !default
               z-index: 4
       &.is-expanded
         flex-grow: 1
+        flex-shrink: 1
     &.has-addons-centered
       justify-content: center
     &.has-addons-right
diff --git a/sass/grid/tiles.sass b/sass/grid/tiles.sass
index 1f6a626f..15648c29 100644
--- a/sass/grid/tiles.sass
+++ b/sass/grid/tiles.sass
@@ -1,3 +1,5 @@
+$tile-spacing: 0.75rem !default
+
 .tile
   align-items: stretch
   display: block
@@ -7,17 +9,17 @@
   min-height: min-content
   // Modifiers
   &.is-ancestor
-    margin-left: -0.75rem
-    margin-right: -0.75rem
-    margin-top: -0.75rem
+    margin-left: $tile-spacing * -1
+    margin-right: $tile-spacing * -1
+    margin-top: $tile-spacing * -1
     &:last-child
-      margin-bottom: -0.75rem
+      margin-bottom: $tile-spacing * -1
     &:not(:last-child)
-      margin-bottom: 0.75rem
+      margin-bottom: $tile-spacing
   &.is-child
     margin: 0 !important
   &.is-parent
-    padding: 0.75rem
+    padding: $tile-spacing
   &.is-vertical
     flex-direction: column
     & > .tile.is-child:not(:last-child)
diff --git a/sass/layout/hero.sass b/sass/layout/hero.sass
index d988040b..3bf1fe8a 100644
--- a/sass/layout/hero.sass
+++ b/sass/layout/hero.sass
@@ -68,19 +68,6 @@
         +mobile
           .navbar-menu
             background-image: linear-gradient(141deg, $gradient-top-left 0%, $color 71%, $gradient-bottom-right 100%)
-      // Responsiveness
-      // +mobile
-      //   .nav-toggle
-      //     span
-      //       background-color: $color-invert
-      //     &:hover
-      //       background-color: rgba($black, 0.1)
-      //     &.is-active
-      //       span
-      //         background-color: $color-invert
-      //   .nav-menu
-      //     .nav-item
-      //       border-top-color: rgba($color-invert, 0.2)
   // Sizes
   &.is-small
     .hero-body
diff --git a/sass/utilities/initial-variables.sass b/sass/utilities/initial-variables.sass
index 4e1ce511..0650ce3a 100644
--- a/sass/utilities/initial-variables.sass
+++ b/sass/utilities/initial-variables.sass
@@ -43,6 +43,10 @@ $weight-medium: 500 !default
 $weight-semibold: 600 !default
 $weight-bold: 700 !default
 
+// Spacing
+
+$block-spacing: 1.5rem !default
+
 // Responsiveness
 
 // The container horizontal gap, which acts as the offset for breakpoints
diff --git a/sass/utilities/mixins.sass b/sass/utilities/mixins.sass
index 5623e3c6..e95abd02 100644
--- a/sass/utilities/mixins.sass
+++ b/sass/utilities/mixins.sass
@@ -159,9 +159,9 @@
 %arrow
   +arrow
 
-=block
+=block($spacing: $block-spacing)
   &:not(:last-child)
-    margin-bottom: 1.5rem
+    margin-bottom: $spacing
 
 %block
   +block