normalize.css/normalize.css

/* ============================================================================================================= HTML5 ELEMENT DISPLAY */

/*
 * Add display for block-level HTML5 elements
 * Display not defined in IE6/7/8/9 & FF3
 */

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
nav,
section {
    display: block;
}

/*
 * Add display for embedded HTML5 elements
 * Display not defined in IE6/7/8/9 & FF3
 */

audio,
canvas,
video {
    display: inline-block;
    *display: inline;
    *zoom: 1;
}


/* ============================================================================================================= BASE STYLES & FIXES */

/*
 * 1. Add vertical scrollbar to <html> element
 *      Keeps page centred in all browsers regardless of content height
 * 2. Remove iOS tap highlight color to prevent entire container's being highlighted
 *      www.yuiblog.com/blog/2010/10/01/quick-tip-customizing-the-mobile-safari-tap-highlight-color/
 * 3. Remove iOS text size adjust without disabling user zoom
 *      www.456bereastreet.com/archive/201012/controlling_text_size_in_safari_for_ios_without_disabling_user_zoom/
 */

html {
    overflow-y: scroll; /* 1 */
    -webkit-tap-highlight-color: transparent; /* 2 */
    -webkit-text-size-adjust: 100%; /* 3 */
    -ms-text-size-adjust: 100%;
}

/*
 * 1. Define the base font-size of choice; set in % or em to retain text resizing in IE6/7
 * 2. Define the base line-height of choice.
 * 3. Remove margin from <body> element
 */

body {
    font-size: 100%; /* 1 */
    line-height: normal; /* 2 */
    margin: 0; /* 3 */
}

/* 
 * Define the base font-family and text color for <body> and form elements
 * Fixes font-family inconsistency between <textarea> and other set form elements.
 */

body,
input,
button, 
textarea,
select {
    font-family: sans-serif;
}

/*
 * 1. Disable border for <img> element
 *      Improves readability when inside <a> element in all browsers
 * 2. Allow high quality bicubic image resampling for <img> element
 *      Improves readability when scaled in IE7
 *      Read before using : code.flickr.com/blog/2008/11/12/on-ui-quality-the-little-things-client-side-image-resizing/
 */

img {
    border: 0; /* 1 */
    -ms-interpolation-mode: bicubic; /* 2 */
}

/* ............................................................................................................. Links */

a {
    color: #0000EE;
}

a:visited {
    color: #551A8B;
}

/*
 * Make outline thin dotted for <a>
 * Fixes outline displayed oddly in C10
 */

a:focus {
    outline: thin dotted;
}

/*
 * Remove outline for <a> element when active or hovered
 * Improves readability when focused and also mouse hovered in all browsers
 *   people.opera.com/patrickl/experiments/keyboard/test
 */

a:active,
a:hover {
    outline: none;
}

/* ............................................................................................................. General typography */

/*
 * Add bottom border to <abbr> element
 * Fixes styling not present in IE6/7/8/9 S5 Chrome
 */

abbr[title] {
    border-bottom: 1px dotted;
}

/*
 * Add bold font weight to <b> and <strong> elements
 * Fixes style set to 'bolder' in FF3/4 S4/5 Chrome
*/

b, 
strong { 
    font-weight: bold; 
}

blockquote {
    margin: 1em 40px;
}

/*
 * Add italic font style to <dfn> element
 * Fixes styling not present in S5 Chrome
 */

dfn {
    font-style: italic;
}

/*
 * Add yellow background and black text to <mark> element
 * Fixes styling not present in IE6/7/8/9
 */

mark {
    background-color: #FF0;
    color: #000;
}

/*
 * Redeclare monospace font family to <pre> <code> <kbd> <samp> elements
 *   en.wikipedia.org/wiki/User:Davidgothberg/Test59
 * 1. Fixes font family set oddly in S5 Chrome
 * 2. Fixes monospace font family set oddly in IE6
 */

pre,
code,
kbd,
samp {
    font-family: monospace, monospace; /* 1 */
    _font-family: 'Courier New', monospace, monospace; /* 2 */
    font-size: 1em;
}

/*
 * Allow line wrapping for <pre> element
 * Improves readability of pre-formatted text in all browsers
 */

pre {
    white-space: pre;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/*
 * Remove quotes from <q> element
 * 1. Addresses CSS quotes not supported in IE6/7
 * 2. Addresses quote attributes not supported in S4
 */

/* 1 */

q {
    quotes: none;
}

/* 2 */

q:before,
q:after {
    content: '';
    content: none;
}

/*
 * Define font-size and alignment for <small> element
 */

small {
    font-size: 75%;
}

/*
 * Position subscript and superscript content without affecting line-height
 * Fixes alignment within multi-line text displayed oddly in all browsers
 *   gist.github.com/413930
 */

sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}

/* ............................................................................................................. Lists */

ul,
ol {
    margin: 1em 0;
    padding: 0 0 0 40px;
}

dd {
    margin: 0 0 0 40px;
}

nav ul,
nav ol {
    list-style: none;
}

/* ............................................................................................................. Figures */

/*
 * Define consistent margin for <figure> element
 * Fixes margin not present in IE6/7/8/9, S5, O11
 */

figure {
    margin: 0;
}

/* ............................................................................................................. Form elements */

/*
 * Remove margin from <form> element
 * Fixes styling in IE6/7
 */

form {
    margin: 0;
}

/*
 * Define consistent margin and padding for <fieldset> element
 */

fieldset {
    margin: 0 2px;
    padding: 0.35em 0.625em 0.75em;
}

/*
 * Define alignment for <legend> element
 * Fixes alignment displayed oddly in IE6/7
 */

legend {
    *margin-left: -7px;
}

/*
 * 1. Define font-size as equal to <body> font-size
 * 2. Remove margin from form elements
 *      Fixes different margins set in FF3/4 S5 Chrome
 * 3. Define consistent vertical alignment display in all browsers
 */

button,
input,
select,
textarea {
    font-size: 100%; /* 1 */
    margin: 0; /* 2 */
    vertical-align: baseline; /* 3 */
    *vertical-align: middle; /* 3 */
}

/*
 * 1. Define consistent line-height as 'normal'
 *      FF3/4 set it using !important in the UA stylesheet
 * 2. Fix spacing displayed oddly in IE6/7
 */

button,
input {
    line-height: normal; /* 1 */
    *overflow: visible;  /* 2 */
}

/*
 * 1. Display hand cursor for clickable form elements in all browsers except IE6.
 *      Improves usability and consistency of cursor style between image-type <input> and others
 * 2. Define consistent appearance for clickable form elements
 *      Fixes inability to style clickable <input> types in iOS
 */

button,
input[type="button"], 
input[type="reset"], 
input[type="submit"] {
    cursor: pointer; /* 1 */
    -webkit-appearance: button; /* 2 */
}

/*
 * Define box sizing for checkbox and radio <input> types
 * Addresses box sizing set to content-box in IE8/9
 */

input[type="checkbox"],
input[type="radio"] {
    box-sizing: border-box;
}

/*
 * Define box sizing and appearance for search <input> type
 * Address box sizing set to border-box in S5 Chrome (include -moz to future-proof)
 * Address appearance set to searchfield in S5 Chrome
 */

input[type="search"] {
    -webkit-appearance: textfield;
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
}

/*
 * Fix inner padding and border displayed in FF3/4
 *   www.sitepen.com/blog/2008/05/14/the-devils-in-the-details-fixing-dojos-toolbar-buttons/
 */

button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0;
}

/*
 * 1. Disable default vertical scrollbar for <textarea> element
 *      Fixes scrollbar displayed oddly in IE6/7/8/9
 * 2. Improves readability and aligment in all browsers
 */

textarea {
    overflow: auto; /* 1 */
    vertical-align: top; /* 2 */
}

/* ............................................................................................................. Table elements */

/* 
 * Remove most spacing between table cells
 * Consistent vertical and horizontal alignment
 */

table {
    border-collapse: collapse;
    border-spacing: 0;
}

th,
td {
    padding: 0;
    text-align: left;
    vertical-align: middle;
}