.caseapp{
          
          }
          .caseapp ul{
            margin:0;padding:0;
          }
          .caseapp ul li{
            float:left;
            list-style:none;
            width:470px;
            padding:15px 0 0 25px;
          }
          .caseapp ul li img{
            width:450px;
            height:278px;
            border:#ddd 2px solid;
            padding:2px;
          }
          .caseapp ul li span{
            display:block;
            text-align:center;
            line-height:35px;
          }
          
          .caseapp ul li:hover img{
            border:#030 2px solid;
          }
          
          .caseChannel{
            display:flex;
            flex-direction:row;
            flex-wrap: nowrap;
          }
          .caseChannel .item{
            flex-grow:1;
            text-align:center;
            font-size:18px;
            background-color:#ddd;
            
          }
          .caseChannel .item a{
            line-height:50px;
            width:100%;
            display:block;
          }
          .caseChannel .item a:hover{
            color:#F00;
          }
          .caseChannel .active{
            background-color:#FF9401;
            color:#fff;
          }