Makes embedded YouTube videos fully responsive on all devices.
<div class="video-wrapper">
<iframe
src="https://www.youtube.com/embed/VIDEO_ID"
title="YouTube video"
frameborder="0"
allowfullscreen>
</iframe>
</div>
<style>
.video-wrapper {
position: relative;
padding-bottom: 56.25%;
height: 0;
overflow: hidden;
max-width: 100%;
}
.video-wrapper iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
</style>
