.@{prefix}{
  &content{
    background: #fff;
    padding: 1em;
    overflow: hidden;
    transition: all 2s;
  }

  &content-close{
    overflow: hidden;
    height:80px;
    position: relative;
  }

  &content-close:before{
    content: " ";
    position: absolute;
    left:0;
    right:0;
    bottom:0em;
    height: 4em;
    background-image: linear-gradient(rgba(255,255,255,0),rgba(255,255,255,1));
  }

  &content-close:after{
    font-family: "iconfont";
    font-size:14px;
    content: @icon-unfold;
    position: absolute;
    left:0;
    right:0;
    bottom:0px;
    height: 2em;
    line-height: 2em;
    background: #fff;
  }

  &content-open{
    overflow: hidden;
    height:auto;
    position: relative;
    padding-bottom: 3em;
  }

  &content-open:after{
    font-family: 'iconfont';
    font-size:14px;
    content: @icon-fold;
    position: absolute;
    left:0;
    right:0;
    bottom:-2px;
    height: 3em;
    line-height: 3em;
  }
}