【jQuery】YouTubeの埋め込み動画をクリックした時にアニメーションするオリジナルサムネイルを実装する方法のデモページ

.wrap {
  width: 640px;
  margin: 50px auto 0;
}

.movie-box {
  position: relative;
  overflow: hidden;
  background: url("thumb.jpg") no-repeat;
  background-size: cover;
}

.movie-play {
  position: absolute;
  width: 90px;
  height: 90px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: url("thumb_play.png") center center/cover;
}

.movie-play:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #000;
  transition: all 0.5s ease-out;
}

.show.movie-play:after {
  width: 1.8vh;
  height: 1.8vh;
  transform: translate(-50%, -50%) scale(100);
  transition: transform 0.5s ease-out;
}

.movie-inner {
  position: relative;
  width: 100%;
  padding-top: 66.25%;
  z-index: 2;
}

.movie-inner .movie-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.movie-inner iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

@media screen and (max-width:640px){
  .wrap {
    width: 100%;
  }
}
  

$(function(){
  $('.movie-thumb').on('click',function(){
  var movie_thumb = $(this).attr("id");
  $('.movie-play').addClass('show');
  $(this).fadeOut(1000);
  $(this).parent().append('<iframe width="600" height="338" src="https://www.youtube.com/embed/' + movie_thumb + '?rel=0&loop=1&playlist=' + movie_thumb + '" frameborder="0" allowfullscreen></iframe>')
  });
});