.video-play-button {
  position: absolute;
  top: 0;
  left: 0;
  width: 500px;
  height: 700px;
  font-size: 72px;
  transition: color .3s ease;
  text-align: center;
  line-height: 700px;
  color: #bbb;
}

.video-play-button:hover {
  color: #eee;
  cursor: pointer;
}

.video-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 500px;
  height: 700px;
  background: #000;
  opacity: .4;
}

.video-mask.hide,
.video-play-button.hide {
  display: none;
}