.video-js.vjs-fullscreen .waterMark {
    background-image: url(waterMark.png);
    background-repeat: no-repeat;
    height: 10%;
    top: 8%;
    right: 5%;
    width: 12%;
    z-index: 15;
    position: absolute;
    background-size: 100%;
}

    .video-js.vjs-fullscreen .waterMark.waterMarkLeft {
        right: initial;
        left: 5%;
    }

.video-js.vjs-fullscreen.vjs-ad-playing .waterMark {
    display: none;
}