.custom-video-container {
position: relative;
padding-bottom: 56.25%; height: 0;
overflow: hidden;
border-radius: 15px; transform: translateZ(0); }
.custom-video-container iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
border: 0;
border-radius: 15px; }