隐藏IE、谷歌、火狐浏览器滚动条

    //IE浏览器
    html,
    body,
    #app {
      -ms-overflow-style: none;
    }
    
    //谷歌、火狐
    ::-webkit-scrollbar {
      width: 0;
      height: 0;
      background-color: transparent;
    }