.video_content{
  position: fixed; 
  top: 10rpx; 
  left: 0;
  width: 100%;
  height: 100%; 
  background-color: rgba(0, 0, 0, 0.2);
  z-index: 9999; 
  .video{
    position: fixed;
    border-radius: 8rpx;
    top: 50%;
    left: 75rpx;
    transform: translate(0, -50%);
    width: 600rpx; 
    z-index: 10000;
  }
}