.ytp-large-play-button {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 68px;
    height: 48px;
    margin-left: -34px;
    margin-top: -24px;
    -webkit-transition: opacity .25s cubic-bezier(0,0,.2,1);
    transition: opacity .25s cubic-bezier(0,0,.2,1);
    z-index: 63;
    cursor: pointer;
}