gistfile1.css

// Mixins and variables

@mixin clearfix {
  &:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }
  * html & { height: 1px }
}

// Reset and default

html, body, div, span, object, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, samp, small, strong, sub, sup, tt, var, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0; padding: 0; border: 0; font-size: 100%; vertical-align: baseline; background: transparent; }
table { border-collapse: collapse; border-spacing: 0; }
th, td { vertical-align: top; }
th { text-align: left; }
li { list-style: none; }
hr { display: none; }
strong { font-weight: bold; }
em { font-style: italic; }
del { text-decoration: line-through; }
th { font-weight: normal; }
address, cite, dfn { font-style: normal; } 
abbr, acronym { border-bottom: 1px dotted #999; cursor: help; }
input, textarea, select { font-family: Verdana, Arial, Helvetica, sans-serif; }

header, nav { display: block; }

// Basic and layout

body {
  background: #1c1c1c;
  color: #fff;
  font: 62.5%/1.5 Verdana, Arial, Helvetica, sans-serif;
}
a, a:visited { color: #fff; text-decoration: none; }
a:hover, a:active { color: #fff; text-decoration: underline; }

#container {
  width: 960px;
  margin: 20px auto;
}

header.main {
  position: relative;
  height: 175px;
  padding-left: 200px;
  background: url('../images/logo.png') no-repeat left;
}

#logo {
  position: absolute;
  top: 50%;
  margin-top: -0.9em;
  font-size: 5em;
}

#user-controls {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 1.2em;

  li {
    float: left;

    a, span {
      display: block;
      margin-left: 30px;
      padding-left: 30px;
      height: 25px;
      line-height: 25px;
      background: no-repeat left;
    }

    &.login a, &.login span {
      background-image: url("../images/ico_user.png");
    }

    &.login span a {
      display: inline !important;
      margin: 0;
      padding: 0;
      background: none;
    }

    &.cart a {
      background-image: url("../images/ico_cart.png");
    }
  }

}

nav.main, nav.secondary {
  ul { @include clearfix; }
}

nav.main {
  margin-top: 20px;
  text-transform: lowercase;

  li {
    float: left;
    width: 160px;
    text-align: center;
    font-size: 1.6em;
  }

  a {
    display: block;
    padding: 20px 0;
    background: url('../images/bg_nav_item.png') no-repeat;

    &:hover {
      background: #f07901 url('../images/bg_nav_item_active.png') no-repeat;
      text-decoration: none;
    }
  }

  .home a {
    background-image: none;
  }
}

nav.secondary {
  margin-top: 20px;
  border-bottom: 2px solid #f07901;
  font-size: 2em;
  text-align: center;
  text-transform: lowercase;

  li {
    float: left;
    margin-right: 30px;

    &.last {
      margin-right: 0;
    }
  }

  a {
    display: block;
    width: 300px;
    background: url('../images/bg_subnav_item.png') no-repeat right bottom;
    text-decoration: none;

    span {
      display: block;
      height: 49px;
      line-height: 49px;
      margin-right: 20px;
      background: url('../images/bg_subnav_item.png') no-repeat bottom left;
      text-indent: 10px;
    }

    &:hover {
      background-position: right top;

      span {
        background-position: left top;
      }
    }
  }
}

// Content

section.main {
  font-size: 1.2em;
}

// Pages

body.videos-index {
  ul.videos {
    margin-top: 20px;
    li {
      @include clearfix;
      width: 460px;
      margin-bottom: 30px;
      padding-top: 30px;
      border-top: 1px solid #666;

      &.odd {
        clear: both;
        float: left;
      }
      &.even {
        float: right;
      }
      &.no-border {
        padding-top: 0;
        border: none;
      }
    }

    .details {
      float: left;
      width: 210px;
    }

    .description {
      float: right;
      width: 240px;
    }

    a.img {
      display: block;
      margin-bottom: 10px;
      padding: 4px;
      background: #666;

      img {
        display: block;
        border: 1px solid #333;
      }
    }

    .applications li {
      float: left;
      margin: 0 10px 0 0;
      padding: 0;
      height: 32px;
      width: 32px;
      border: none;

      img { display: block; }
    }

    a.price {
      float: right;
      padding-left: 10px;
      background: url('../images/bg_price_link.png') no-repeat left top;
      font-size: 0.83em;
      font-weight: bold;
      text-shadow: 1px 1px 1px #000;
      text-decoration: none;

      span {
        display: block;
        padding-right: 10px;
        height: 26px;
        line-height: 26px;
        background: url('../images/bg_price_link.png') no-repeat right top;
      }

      .tooltip {
        display: none;
        overflow: hidden;
        position: absolute;
        top: 0;
        left: 0;
        padding: 0 0 0 6px;
        width: 94px;
        height: 37px;
        line-height: 36px;
        background: url(../images/bg_tooltip.png) no-repeat;
        font-size: 1.1em;
        font-weight: bold;
        text-align: center;
        text-transform: uppercase;
        z-index: 3;
      }
    }

    h2 {
      font-size: 1.5em;
    }

    p {
      margin-top: 1.3em;
    }
  }
}

body.pages-home {
  ul.disciplines {
    margin-top: 30px;

    li {
      float: left;
      width: 320px;
      font-size: 2em;
      text-align: center;
      text-transform: lowercase;

      a {
        display: block;
        padding: 30px 0;
      }
    }
  }
}