engine/app/assets/stylesheets/locomotive/menu/main.scss

@import "compass/css3/images";
@import "compass/css3/border-radius";
@import "compass/css3/text-shadow";
@import "compass/css3/box-shadow";
@import "compass/css3/transform-legacy";

#menu {
  padding: 0;
  margin: 20px 8px 0 2px;
  list-style: none;

  li.entry {
    float: left;
    position: relative;
    padding: 6px 6px 0 6px;
    height: 29px;
    line-height: 29px;
    overflow: hidden;

    a {
      display: block;
      float: left;

      position: relative;
      z-index: 1;

      padding: 0 7px;

      line-height: 29px;

      @include border-top-left-radius(2px);
      @include border-top-right-radius(2px);

      background: #bcc8cb;
      @include box-shadow(rgba(0, 0, 0, 0.5) 0px 0px 10px 0px, rgba(255, 255, 255, 0.2) 0 1px 0 0 inset);

      font-size: 13px;
      text-decoration: none;

      span {
        text-decoration: none;
        color: #787A89;
        @include single-text-shadow(rgba(255, 255, 255, 0.4), 1px, 1px, 1px);
      }
    }

    div.left, div.right {
      float: left;

      width: 34px;
      height: 29px;

      overflow: hidden;

      position: relative;
      top: 0px;
      right: 0px;

      z-index: 100;

      span {
        display: block;
        position: relative;

        width:  41px;
        height: 41px;
      }
    }

    div.right {
      span {
        top: 9px;
        right: 20px;

        background: #bcc8cb;
        @include box-shadow(rgba(0, 0, 0, 0.5) 0px 0px 10px 0px, rgba(255, 255, 255, 0.5) 0 0 1px 0 inset);
        @include rotate(-45deg);
      }
    }

    div.left {
      span {
        top: 9px;
        left: 14px;

        background: #bcc8cb;
        @include box-shadow(rgba(0, 0, 0, 0.5) 0px 0px 10px 0px, rgba(255, 255, 255, 0.5) 0 0 1px 0 inset);
        @include rotate(45deg);
      }
    }

    div.shadow {
      display: none; // TODO

      position: absolute;
      height: 8px;
      bottom: -8px;
      right: 0px;
      width: 100%;
      z-index: 995;

      div {
        @include box-shadow(rgba(0, 0, 0, 0.4) 0px 0px 10px 0px);
        height: 8px;
        margin: 0 13px 0 0;
      }
    }

    &:first-child {
      z-index: 990;
      a {
        @include border-top-left-radius(4px);
        padding-left: 10px;
      }
      div.left {
        display: none;
      }
      div.shadow { // TODO
        left: 6px;
      }
    }

    @for $i from 1 through 5 {
      &.entry-#{$i} { left: -42px * $i; z-index: 990 - $i; }
    }
  }
}