.vjs-poster{
  background-size: 102% !important;
}
/* 视频样式重写 */
#pptutorVideoH5 .video-js .vjs-big-play-button{
  width: .8rem !important;
  height: .8rem !important;
  border-radius: 50% !important;
  line-height: .8rem !important;
  font-size: 3em !important;
  margin-left: -0.4rem !important;
  border: none !important;
}
/* 视频样式重写 */
#pptutorVideoPC .video-js .vjs-big-play-button{
  width: 80px !important;
  height: 80px !important;
  border-radius: 50% !important;
  line-height: 80px !important;
  font-size: 4em !important;
  margin-left: -40px !important;
  border: none !important;
}