.video_list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 0 70px;
}
.video_item {
 flex: 1;
  display: flex;
  flex-direction: column;
  margin-bottom: 40px;
}
.video_item video {
  width: 400px;
  height: 200px;
  object-fit: fill;
}
.video_item .video_iinfo{
  display: flex;
    align-items: center;
    margin-top: 10px;
}
.video_item .video_iinfo>img{
  width: 25px;
    height: 25px;
    margin-right: 10px;
}
.video_item .video_iinfo>span{
    font-weight: bold;
    color: #2a599d;;
}
.u-flex {
      display: flex;
      margin-left: 309px;
      margin-top: 66px;
      font-size: 18px;
      padding-bottom: 30px;
      padding-left: 200px;
    }
    .u-flex span{
      padding: 10px 0;
    }
    .active-color {
      background-color: #26569b;
      color: #fff;
      padding: 10px 16px !important;
      line-height: inherit;
      border-radius: 8px;
    }

    .u-flex li {
      cursor: pointer;
      padding: 10px 0;
      margin-right: 20px;
    }