diff --git a/src/buttons/tests/manual/button.html b/src/buttons/tests/manual/button.html
index 22ffb95..280b809 100644
--- a/src/buttons/tests/manual/button.html
+++ b/src/buttons/tests/manual/button.html
@@ -16,7 +16,7 @@
             font-weight:bold;
             color: white;
             padding: 0.8em 2.5em;
-            background: #16bb51;
+            background-color: #16bb51;
             border-radius: 6px;
             text-shadow: 0 1px 1px rgb(22, 116, 29);
         }
@@ -40,11 +40,11 @@
 
         .pure-button-wedding:hover,
         .pure-button-wedding:focus {
-            background: #555;
+            background-color: #555;
             color: #eee;
         }
         .pure-button-wedding:active {
-            background: #222;
+            background-color: #222;
             color: #fff;
             box-shadow: none;
         }
diff --git a/src/forms/css/forms.css b/src/forms/css/forms.css
index 6c67d3b..5da6c26 100644
--- a/src/forms/css/forms.css
+++ b/src/forms/css/forms.css
@@ -123,7 +123,7 @@ since IE8 won't execute CSS that contains a CSS3 selector.
 .pure-form input[readonly],
 .pure-form select[readonly],
 .pure-form textarea[readonly] {
-    background: #eee; /* menu hover bg color */
+    background-color: #eee; /* menu hover bg color */
     color: #777; /* menu text color */
     border-color: #ccc;
 }
diff --git a/src/menus/css/menus.css b/src/menus/css/menus.css
index 042e535..a554ad4 100644
--- a/src/menus/css/menus.css
+++ b/src/menus/css/menus.css
@@ -5,7 +5,7 @@
 
 .pure-menu.pure-menu-open,
 .pure-menu.pure-menu-horizontal li .pure-menu-children {
-    background: #fff; /* Old browsers */
+    background-color: #fff; /* Old browsers */
     border: 1px solid #b7b7b7;
 }
 
@@ -36,19 +36,19 @@
 
 /* Focus style for a dropdown menu-item when the parent has been opened */
 .pure-menu .pure-menu-open {
-    background: #dedede;
+    background-color: #dedede;
 }
 
 
 .pure-menu li a:hover,
 .pure-menu li a:focus {
-    background: #eee;
+    background-color: #eee;
 }
 
 /* DISABLED STATES */
 .pure-menu li.pure-menu-disabled a:hover,
 .pure-menu li.pure-menu-disabled a:focus {
-    background: #fff;
+    background-color: #fff;
     color: #bfbfbf;
 }
 
diff --git a/src/tables/css/tables.css b/src/tables/css/tables.css
index ef4ba92..64b769c 100644
--- a/src/tables/css/tables.css
+++ b/src/tables/css/tables.css
@@ -28,7 +28,7 @@
 }
 
 .pure-table thead {
-    background: #e0e0e0;
+    background-color: #e0e0e0;
     color: #000;
     text-align: left;
     vertical-align: bottom;