.shadow {
  overflow: hidden;
  background: rgba(0,0,0,.7);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  z-index: 1;
}
.box {
  width: 60%;
  height: 80%;
  background:transparent;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  z-index: 2;
  padding: 60px 15px;
  background-color: #fff;
}
.box_video{
  width: 100%;
  height: 100%;
  background-color: #fff;
}
.box_video_btn{
  width: 90px;
	height: 35px; 
  border-radius: 6px;
  margin-top: 10px;
  cursor:pointer
}
.box_video_btn img{
  width: 15px;
  height: 15px;
  margin-right: 3px;
}
.box_video_btn span{
  font-family: Open Sans;
  font-size: 16px;
  font-weight: 600;
  font-stretch: normal;
  line-height: 40px;
  letter-spacing: 0px;
  color: #ffffff;
}
.close {
  width: 18px;
  height: 18px; 
  position: absolute;
  top: 3%;
  right: 2%;
  text-align: center;
  line-height: 30px;
  z-index: 3;
  background:url(/images2020/delete.png) no-repeat 0 0; 
  opacity:1;
  cursor:pointer
}
video {
  width: 100%;
  height: 100%;
}
.iframe_video {
  width: 100%;
  height: 100%;
}

@media (max-width:1100px){
  .box{
    width: 90%;
    height: 60%;
  }
}

 @media (max-width: 768px){
  .box_video_btn{
    padding-left: 5px;
  }
}