.center-video{
margin-top:20px;
display: inline-block;
width: 100%;
text-align: center;
}
.max-width-video{
display: inline-block;
max-width: 600px;
width: 100%;
}
.video-responsive {
display: block;
overflow: hidden;
position: relative;
padding: 0;
width: 100%;
padding-bottom: 56.25%;
}
.video-responsive iframe, .video-responsive img {
position: absolute;
top: 0;
right: 0;
width: 100%;
height: 100%;
}