.yt-hd-thumbnail-inner-container {
  height: 0;
  padding-top: 56.25%;
  position: relative;
  width: 100%;
  height: 100%;
}
.yt-hd-thumbnail-inner-container > a.yt-hd-thumbnail,
.yt-hd-thumbnail-inner-container > iframe {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-width: 0;
}
.yt-hd-thumbnail-inner-container > a.yt-hd-thumbnail {
  z-index: 2;
}
.yt-hd-thumbnail-inner-container > a.yt-hd-thumbnail img {
  max-width: 100%;
}
.yt-hd-thumbnail-inner-container
  > a.yt-hd-thumbnail.yt-hd-thumbnail-darken:before {
  border-radius: 5px;
  display: block;
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #000;
  opacity: 0.3;
  -webkit-transition: opacity 0.3s ease;
  -moz-transition: opacity 0.3s ease;
  transition: opacity 0.3s ease;
}
.yt-hd-thumbnail-inner-container
  > a.yt-hd-thumbnail.yt-hd-thumbnail-darken:hover:before {
  opacity: 0;
}
.yt-hd-thumbnail-inner-container > a.yt-hd-thumbnail:after {
  display: block;
  position: absolute;
  content: "";
  background-image: url(youtube-play.svg);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center;
  width: 80px;
  height: 80px;
  top: 50%;
  left: 50%;
  margin-left: -40px;
  margin-top: -40px;
  opacity: 0.5;
  -webkit-transition: opacity 0.3s ease;
  -moz-transition: opacity 0.3s ease;
  transition: opacity 0.3s ease;
}
.yt-hd-thumbnail-inner-container > a.yt-hd-thumbnail:hover:after {
  opacity: 0.8;
}
.yt-hd-thumbnail-inner-container > iframe {
  max-width: 100%;
  opacity: 0;
  -webkit-transition: opacity 0.3s ease 0.3s;
  -moz-transition: opacity 0.3s ease 0.3s;
  transition: opacity 0.3s ease 0.3s;
}
.yt-hd-thumbnail-inner-container.yt-hd-thumbnail-clicked > a.yt-hd-thumbnail {
  display: none;
}
.yt-hd-thumbnail-inner-container.yt-hd-thumbnail-clicked > iframe {
  opacity: 1;
}
.yt-hd-thumbnail > img {
  border-radius: 5px;
  width: 100%;
  height: 100%;
}
.yt-hd-thumbnail-outer-container {
  width: 100%;
  height: 100%;
}