codecombat/app/styles/bootstrap/_reset.scss

//
// Reset CSS
// Adapted from http://github.com/necolas/normalize.css
// --------------------------------------------------


// Display in IE6-9 and FF3
// -------------------------

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

// Display block in IE6-9 and FF3
// -------------------------

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

// Prevents modern browsers from displaying 'audio' without controls
// -------------------------

audio:not([controls]) {
    display: none;
}

// Base settings
// -------------------------

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
      -ms-text-size-adjust: 100%;
}
// Focus states
a:focus {
  @include tab-focus();
}
// Hover & Active
a:hover,
a:active {
  outline: 0;
}

// Prevents sub and sup affecting line-height in all browsers
// -------------------------

sub,
sup {
  position: relative;
  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}

// Img border in a's and image quality
// -------------------------

img {
  /* Responsive images (ensure images don't scale beyond their parents) */
  max-width: 100%; /* Part 1: Set a maxium relative to the parent */
  width: auto\9; /* IE7-8 need help adjusting responsive images */
  height: auto; /* Part 2: Scale the height according to the width, otherwise you get stretching */

  vertical-align: middle;
  border: 0;
  -ms-interpolation-mode: bicubic;
}

// Prevent max-width from affecting Google Maps
#map_canvas img,
.google-maps img {
  max-width: none;
}

// Forms
// -------------------------

// Font size in all browsers, margin changes, misc consistency
button,
input,
select,
textarea {
  margin: 0;
  font-size: 100%;
  vertical-align: middle;
}
button,
input {
  *overflow: visible; // Inner spacing ie IE6/7
  line-height: normal; // FF3/4 have !important on line-height in UA stylesheet
}
button::-moz-focus-inner,
input::-moz-focus-inner { // Inner padding and border oddities in FF3/4
  padding: 0;
  border: 0;
}
button,
html input[type="button"], // Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls.
input[type="reset"],
input[type="submit"] {
    -webkit-appearance: button; // Corrects inability to style clickable `input` types in iOS.
    cursor: pointer; // Improves usability and consistency of cursor style between image-type `input` and others.
}
label,
select,
button,
input[type="button"],
input[type="reset"],
input[type="submit"],
input[type="radio"],
input[type="checkbox"] {
    cursor: pointer; // Improves usability and consistency of cursor style between image-type `input` and others.
}
input[type="search"] { // Appearance in Safari/Chrome
  @include box-sizing(content-box);
  -webkit-appearance: textfield;
}
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none; // Inner-padding issues in Chrome OSX, Safari 5
}
textarea {
  overflow: auto; // Remove vertical scrollbar in IE6-9
  vertical-align: top; // Readability and alignment cross-browser
}


// Printing
// -------------------------
// Source: https://github.com/h5bp/html5-boilerplate/blob/master/css/main.css

@media print {

  * {
    text-shadow: none !important;
    color: #000 !important; // Black prints faster: h5bp.com/s
    background: transparent !important;
    box-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]:after {
    content: " (" attr(href) ")";
  }

  abbr[title]:after {
    content: " (" attr(title) ")";
  }

  // Don't show links for images, or javascript/internal links
  .ir a:after,
  a[href^="javascript:"]:after,
  a[href^="#"]:after {
    content: "";
  }

  pre,
  blockquote {
    border: 1px solid #999;
    page-break-inside: avoid;
  }

  thead {
    display: table-header-group; // h5bp.com/t
  }

  tr,
  img {
    page-break-inside: avoid;
  }

  img {
    max-width: 100% !important;
  }

  @page {
    margin: 0.5cm;
  }

  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }
}