@media only screen and (min-width: 700px){
    #DisplayVideo
    {
    width: 100vw;
    height: auto;
    margin: 0;
    padding: 0;
    }
    #DisplayVideo div
    {
    margin-left: 0vw;
    }
    video {
    object-fit: fill;
    width: 48vw;
    height: 500px;
    float: left;
    margin-left: 1vw;
    margin-right: 1vw;
    margin-top: 1vw;
    margin-bottom: 1vw;
    }
}