ul {
  &.collapsible_menu {
    li {
      position: relative;
      span.arrow {
        background-repeat: no-repeat;
        background-image: image_url('refinery/icons/up.gif');
        position: absolute;
        right: 10px;
        top: 13px;
        width: 11px;
        height: 7px;
        cursor: pointer;
      }
      &.closed span.arrow {
        background-image: image_url('refinery/icons/down.gif');
      }
    }
    > div {
      width: 93%;
      margin: 0px auto;
    }
  }
}