.d_video2 {

  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: none;
}

.d_video2 .d_part {
  width: 100%;
  height: 100%;
  background: #fff;
  position: absolute;
  overflow: hidden;
  margin:0px;
  padding: 0px;


}
.d_video2 .d_part .d_btn {
display: none;
}
.d_video2 .d_part .d_btn img {
  display: block;
  width: 100%;
}