.responsive-media img {
max-width: 100%;
height: auto;
display: block;
margin: 12px auto;
}
.video-responsive {
position: relative;
padding-top: 56.25%;
height: 0;
overflow: hidden;
margin: 12px auto;
}
.video-responsive video {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
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