.video-body {
  width: 100%;
  float: left;
  height: auto;
  position: relative;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  overflow-x: hidden;
  overflow-y: auto;
  .back-icon {
    width: 30px;
    height: 30px;
    position: absolute;
    top: 12px;
    left: 20px;
    z-index: 999;
  }

  .video-box {
    width: 100%;
    float: left;
    height: 211px;
    position: relative;
    .alert-message {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: white;
      z-index: 100;
      .alert-button {
        width: 100px;
        height: 36px;
        background: #ff4d4f;
        border-radius: 4px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        margin-bottom: 0px;
        font-size: 14px;
        font-weight: 500;
        color: #ffffff;
      }
    }
  }
}

.chapters-hours-cont {
  width: 100%;
  height: auto;
  box-sizing: border-box;
  padding: 10px 20px 20px 20px;
  .hours-list-box {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    .chapter-it {
      width: 100%;
      height: auto;
      margin-top: 20px;

      .chapter-name {
        width: 100%;
        height: 15px;
        font-size: 15px;
        font-weight: 500;
        color: rgba(0, 0, 0, 0.88);
        line-height: 15px;
        text-align: left;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }
    }
    .hours-it {
      width: 100%;
      height: auto;
      margin-top: 20px;
    }
  }
}