@split-prefix-cls: ~"@{css-prefix}split";
@box-shadow: 0 0 4px 0 rgba(28, 36, 56, 0.4);
@trigger-bar-background: rgba(23, 35, 61, 0.25);
@trigger-background: #F8F8F9;
@trigger-width: 6px;
@trigger-bar-width: 4px;
@trigger-bar-offset: (@trigger-width - @trigger-bar-width) / 2;
@trigger-bar-interval: 3px;
@trigger-bar-weight: 1px;
@trigger-bar-con-height: (@trigger-bar-weight + @trigger-bar-interval) * 8;

.@{split-prefix-cls}{
  &-wrapper{
    position: relative;
    width: 100%;
    height: 100%;
  }
  &-pane{
    position: absolute;
    &.left-pane, &.right-pane{
      top: 0px;
      bottom: 0px;
    }
    &.left-pane{
      left: 0px;
    }
    &.right-pane{
      right: 0px;
    }
    &.top-pane, &.bottom-pane{
      left: 0px;
      right: 0px;
    }
    &.top-pane{
      top: 0px;
    }
    &.bottom-pane{
      bottom: 0px;
    }
  }
  &-trigger{
    &-con{
      position: absolute;
      transform: translate(-50%, -50%);
      z-index: 10;
    }
    &-bar-con{
      position: absolute;
      overflow: hidden;
      &.vertical{
        left: @trigger-bar-offset;
        top: 50%;
        height: @trigger-bar-con-height;
        transform: translate(0, -50%);
      }
      &.horizontal{
        left: 50%;
        top: @trigger-bar-offset;
        width: @trigger-bar-con-height;
        transform: translate(-50%, 0);
      }
    }
    &-vertical{
      width: @trigger-width;
      height: 100%;
      background: @trigger-background;
      box-shadow: @box-shadow;
      cursor: col-resize;
      .@{split-prefix-cls}-trigger-bar{
        width: @trigger-bar-width;
        height: 1px;
        background: @trigger-bar-background;
        float: left;
        margin-top: @trigger-bar-interval;
      }
    }
    &-horizontal{
      height: @trigger-width;
      width: 100%;
      background: @trigger-background;
      box-shadow: @box-shadow;
      cursor: row-resize;
      .@{split-prefix-cls}-trigger-bar{
        height: @trigger-bar-width;
        width: 1px;
        background: @trigger-bar-background;
        float: left;
        margin-right: @trigger-bar-interval;
      }
    }
  }
  &-horizontal{
    .@{split-prefix-cls}-trigger-con{
      top: 50%;
      height: 100%;
      width: 0;
    }
  }
  &-vertical{
    .@{split-prefix-cls}-trigger-con{
      left: 50%;
      height: 0;
      width: 100%;
    }
  }
  .no-select{
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
  }
}