CODE EXAMPLE FOR CSS

css youtube video get rid of black border

div.bg_utube {
        position: fixed;
        z-index: -99999;
        -webkit-user-select: none;
        user-select: none;
        width: 100%;
        height: 100%;
        -ms-transform: scale(2,3);
      -webkit-transform: scale(2,3);
      transform: scale(2,3);
    }