.fk-youtube .play-button:before {
  content: "";
  border-style: solid;
  border-width: 15px 0 15px 26px;
  border-color: transparent transparent transparent #fff;
}
.fk-youtube .play-button:before {
  position: absolute;
}
.fk-youtube .play-button:before {
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
}