body{
    margin:0;
    padding:0;
    background: #000;
}
#frame{
    max-height: 100vh;
    max-width: 100vw;
    overflow: hidden;
}

#captions{
    position: absolute;
    width:84%;
    left:8%;
    line-height: 2;
    text-align: center;
    pointer-events: none;
    color: #fff;
    background: rgba(0,0,0,0.5);
    top:0;
    bottom: auto;
    font-family: Arial, Helvetica, sans-serif;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}