How to Make a Video Embed Responsive

17 Sep 2021

Quick summary:

You will need to wrap your iframe with a <div> element that has the class embed-container.

<div class="embed-container">
    <iframe src="https://www.youtube.com/embed/gAYL5H46QnQ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
</div>

Then add the following CSS to make it responsive:

.embed-container {
    position: relative;
    display: block;
    width: 100%;
    overflow: hidden;
    height: 0;
    padding-bottom: 56.25%;
    border: 0;
}

.embed-container iframe {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

Your video should now look like this: