@{alain-default-prefix}__aside {
  position: absolute;
  top: 0;
  bottom: 0;
  margin-top: @alain-default-header-hg;
  width: @alain-default-aside-wd;
  background-color: @alain-default-aside-bg;
  transition: width 0.2s @alain-default-ease, translate 0.2s @alain-default-ease;
  z-index: @zindex + 5;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-overflow-scrolling: touch;
  &:after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    border-right: 1px solid @alain-default-content-heading-border;
  }
  &-inner {
    overflow-x: hidden;
    overflow-y: scroll; // margin-right: -17px;
    height: 100%;
    -webkit-overflow-scrolling: touch;
    /*IE10,IE11*/
    -ms-scroll-chaining: chained;
    -ms-overflow-style: none;
    -ms-content-zooming: zoom;
    -ms-scroll-rails: none;
    -ms-content-zoom-limit-min: 100%;
    -ms-content-zoom-limit-max: 500%;
    -ms-scroll-snap-type: proximity;
    -ms-scroll-snap-points-x: snapList(100%, 200%, 300%, 400%, 500%);
    -ms-overflow-style: none;
    &::-webkit-scrollbar {
      height: @alain-default-aside-scrollbar-width;
      width: @alain-default-aside-scrollbar-height;
    }
    &::-webkit-scrollbar-track {
      -webkit-box-shadow: inset 0 0 @alain-default-aside-scrollbar-width
        @alain-default-aside-scrollbar-track-color;
    }
    &::-webkit-scrollbar-thumb {
      background-color: @alain-default-aside-scrollbar-thumb-color;
    }
  }
}

// Desktop
@media (min-width: @mobile-min) {
  @{alain-default-prefix}__collapsed {
    @{alain-default-prefix}__aside {
      width: @alain-default-aside-collapsed-wd;
    }
  }
}

// Under pad
@media (max-width: @mobile-max) {
  @{alain-default-prefix}__aside,
  @{alain-default-prefix}__content {
    transition: transform 0.3s ease;
  }
  @{alain-default-prefix}__content {
    transform: translate3d(@alain-default-aside-wd, 0, 0);
  }
  @{alain-default-prefix}__collapsed {
    @{alain-default-prefix}__aside {
      transform: translate3d(-100%, 0, 0);
    }
    @{alain-default-prefix}__content {
      transform: translateZ(0);
    }
  }
}