main img {

    display: block; 
    margin-left: auto;
    margin-right: auto;
}

.Video {

    display: block;
    width: 45%;
    height: 400px;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-right: auto;
    margin-left: auto;
    
}

.ArtHeadbar{

    width: 55%;
    margin-top: 10px;

}

@media all and (max-width: 1300px) {

    .Video {
        width: 90%;
    }
}

@media all and (max-width: 866px) {
    .ArtHeadbar{
        margin-top: 0;
    }
}

@media all and (max-width: 700px) {

    .ArtHeadbar{
        width: 90%;

    }

    .Video {

        width: 90%;
        height: 250px;
        margin-bottom: 0px;

    }
  
}