.dzvon{cursor: pointer;}
    .lock_full_screen{position: fixed;z-index:100;width:100vw;height:100vh;background: #000000;opacity: 0.5;}
    
    .back_call_win{position: fixed;z-index:100001;width:100vw;height:100vh;display:flex}
    .back_call_box{
      max-width: 300px;
      max-height: 500px;
      width: 300px;
      height: auto;
      background: #fff;
      border:1px solid #cccccc;
      margin:auto;
      padding:20px 10px 20px 10px;
      font-size:18px;
      color:#000;
      -webkit-border-radius: 10px;
      -moz-border-radius: 10px;
      border-radius: 10px;
      overflow: auto;
    }
    
    .back_call_box .comment{
      font-size:14px;
      color:#000;
    }
    
    .back_call_box li{
      margin:5px 0 5px 0;
    }
    
    .back_call_box li input, .back_call_box li button{
      width:100%;
      font-size: 18px;
      color:#000;
      padding:15px;
      background: #ffffff;
      border:1px solid #faebd7;
    }
    .back_call_box span{
      position:absolute;
      display: none;
      color:#cc0000;
      font-size: 12px;
      margin:3px 0 0 15px;
    }
    
    
    #close_back_win{float:right;display:block;width: 20px; height:20px; text-align: center;cursor:pointer;}