[data-bk-audio] { /* display:block; */
    cursor: pointer;
    width: 34px;
    height: 32px;
    background-image: url("play-pause-sprite.png");
    background-position: 0px -33px;
    background-repeat: no-repeat;
}

    [data-bk-audio].pause { /* display: block; */
        background-position: 0px 0px;
    }

[data-bk-video], video { /* display:block; */
    width: 400px;
    height: 340px;
}