.atvi-html5-video {
  position: relative;
}
.atvi-html5-video .atvi-html5-video-thumbnail {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
}
.atvi-html5-video .atvi-html5-video-thumbnail img {
  width: 100%;
  display: block;
}
.atvi-html5-video .atvi-html5-video-thumbnail button {
  text-indent: 102%;
  white-space: nowrap;
  overflow: hidden;
  display: block;
  letter-spacing: 0;
  text-indent: 100px;
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  cursor: pointer;
  width: 60px;
  height: 60px;
  background: none;
  border: 5px solid #FFF;
  border-radius: 60px;
  z-index: 5;
}
.atvi-html5-video .atvi-html5-video-thumbnail button:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 58%;
  translate: -50% -50%;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 15px 0 15px 25px;
  border-color: transparent transparent transparent #FFF;
}
.atvi-html5-video video {
  width: 100%;
}