customized html5boilerplate css in the form of an scss partial

_boilerplate.scss

// when selecting text, use the following bg and fg colors
$selection-background: #8d7c79;
$selection-color:      #4c3332;

html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
  margin:0;
  padding:0;
  border:0;
  outline:0;
  font-size:100%;
  vertical-align:baseline;
  background:transparent;
}

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

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

a { margin:0; padding:0; font-size:100%; vertical-align:baseline; background:transparent; }
ins { background-color:#ff9; color:#000; text-decoration:none; }
mark { background-color:#ff9; color:#000; font-style:italic; font-weight:bold; }
del { text-decoration: line-through; }
abbr[title], 
dfn[title] { border-bottom:1px dotted; cursor:help; }

hr { display:block; height:1px; border:0; border-top:1px solid #ccc; margin:1em 0; padding:0; }
input, 
select { vertical-align:middle; }

// tables still need cellspacing="0" in the markup
table { border-collapse:collapse; border-spacing:0; }
 
h1,h2,h3,h4,h5,h6 { font-weight: bold; }

// always force a scrollbar in non-IE
html { overflow-y: scroll; }

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

ol { list-style-type: decimal; }

nav ul { list-style:none; }
nav ul, 
nav li { margin: 0; } 

strong, 
th { font-weight: bold; }

td, 
td img { vertical-align: top; } 

sub { vertical-align: sub;   font-size: smaller; }
sup { vertical-align: super; font-size: smaller; }

pre { 
  padding: 15px; 
  white-space: pre;      /* CSS2 */
  white-space: pre-wrap; /* CSS 2.1 */
  white-space: pre-line; /* CSS 3 (and 2.1 as well, actually) */
  word-wrap: break-word; /* IE */
}
 
textarea { overflow: auto; }

.ie6 legend, 
.ie7 legend { margin-left: -7px; } /* thnx ivannikolic! */

input[type="radio"]         { vertical-align: text-bottom; }
input[type="checkbox"]      { vertical-align: bottom; }
.ie7 input[type="checkbox"] { vertical-align: baseline; }
.ie6 input                  { vertical-align: text-bottom; }

label, 
input[type=button], 
input[type=submit], 
button { cursor: pointer; }
 
button, 
input, 
select, 
textarea { margin: 0; }

button {  width: auto; overflow: visible; }

// colors for form validity
input:valid,   textarea:valid   {  }
input:invalid, textarea:invalid { 
  border-radius: 1px;
  @include box-shadow(red 0px 0px 5px);
}
.no-boxshadow input:invalid, 
.no-boxshadow textarea:invalid { background-color: #f0dddd; }


// These selection declarations have to be separate.
// No text-shadow: twitter.com/miketaylr/status/12228805301 
::-moz-selection {
  background: $selection-background;
  color:      $selection-color; 
  text-shadow: none; 
}
::selection { 
  background: $selection-background;
  color:      $selection-color;
  text-shadow: none; 
} 

//  j.mp/webkit-tap-highlight-color
a:link { -webkit-tap-highlight-color: $selection-background; } 

.ie7 img { -ms-interpolation-mode: bicubic; }

// *************************************************
// Non-semantic helper classes 
// extend the following classes with compass
// *************************************************
// example:
// header hgroup h1 a {
//   @extend .ir;
// }
.ir { display: block; text-indent: -999em; overflow: hidden; background-repeat: no-repeat; text-align: left; direction: ltr; } /* image replacement */
.hidden { display: none; visibility: hidden; } 
.visuallyhidden { 
  position: absolute !important;    
  clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
  clip: rect(1px, 1px, 1px, 1px); 
}
.invisible { visibility: hidden; }

// no clearfix class - no need.
// *************************************************
// # at the top of your main/base scss file:
//   @import "compass/utilities/general/clearfix"
// *************************************************
// # then inside of your selectors
// #main-div-with-floated-children {
//   ... everything ...
//   @import clearfix
// }
// *************************************************