.detail-video {
    padding-bottom: 30px;
    background: #fff;
    width: calc(25% - 20px);
    margin: 10px;
}
.anli_box{
      max-height: 736px;   
    overflow-y: auto;     
    overflow-x: hidden;
 
    scrollbar-width: thin;
    scrollbar-color: #c1c7cd #f1f3f4;
}
.anli_box::-webkit-scrollbar {
    width: 5px;         
  }
  .anli_box::-webkit-scrollbar-track {
    background: #f1f3f4;  
    border-radius: 4px;
  }
  .anli_box::-webkit-scrollbar-thumb {
    background: #c1c7cd;  
    border-radius: 4px;
  }
  .anli_box::-webkit-scrollbar-thumb:hover {
    background: #1270B7;  
  }
.anli_box .newstit b{
      display: block;

  white-space: nowrap;

  text-overflow: ellipsis;

  overflow: hidden;
}
.anli_box::-webkit-scrollbar-button {
  display: none;
  height: 0;
}



@media screen and (max-width:990px) {
.detail-video {
    padding-bottom: 30px;
    background: #fff;
    width: calc(50% - 20px);
    margin: 10px;
}
}