.wistia-play-button {
  position: absolute;
  z-index: 10;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 136px;
  height: 136px;
  border-radius: 50%;
  background: #78BE20;
  padding: 0;
  border: 0;
  cursor: pointer;
  display:flex;
  align-items: center;
  justify-content: center;
}

.wistia-play-button::after {
  content: '';
  border-top: 26px solid transparent;
  border-bottom: 26px solid transparent;
  border-left: 42px solid #000;
  display: block;
  margin-left: 11px;
}

.wistia-play-button:hover {
  opacity: 0.9;
}

.video-playing .wistia-play-button {
  display: none;
}

@media (max-width: 640px) {
  .wistia-play-button {
    width: 68px;
    height: 68px;
  }
  .wistia-play-button::after {
    border-top-width: 13px;
    border-bottom-width: 13px;
    border-left-width: 21px;
    margin-left: 6px;
  }
}