Bootstrap Video Background Header with HTML5 Video

A Bootstrap video header with HTML5 video used as the background with a mobile fallback image

by StartBootstrap

HTML

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
<header>

  <!-- This div is  intentionally blank. It creates the transparent black overlay over the video which you can modify in the CSS -->
  <div class="overlay"></div>

  <!-- The HTML5 video element that will create the background video on the header -->
  <video playsinline="playsinline" autoplay="autoplay" muted="muted" loop="loop">
    <source src="https://cdn.coverr.co/videos/coverr-cinematic-snowy-mountains-7615/720p.mp4" type="video/mp4">
  </video>

  <!-- The header content -->
  <div class="container h-100">
    <div class="d-flex h-100 text-center align-items-center">
      <div class="w-100 text-white">
        <h1 class="display-3">Video Header</h1>
        <p class="lead mb-0">Using HTML5 Video and Bootstrap</p>
      </div>
    </div>
  </div>
</header>

<!-- Page section example for content below the video header -->
<section class="my-5">
  <div class="container">
    <div class="row">
      <div class="col-md-8 mx-auto">
        <p>The HTML5 video element uses an mp4 video as a source. Change the source video to add in your own background! The header text is vertically centered using flex utilities that are built into Bootstrap.</p>
        <p>The overlay color and opacity can be changed by modifying the <code>background-color</code> and <code>opacity</code> properties of the <code>.overlay</code> class in the CSS.</p>
        <p>Set the mobile fallback image in the CSS by changing the background image of the header element within the media query at the bottom of the CSS snippet.</p>
        <p class="mb-0">
          Created by <a href="https://startbootstrap.com">Start Bootstrap</a>
        </p>
      </div>
    </div>
  </div>
</section>

CSS

header {
  position: relative;
  background-color: black;
  height: 75vh;
  min-height: 25rem;
  width: 100%;
  overflow: hidden;
}

header video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  z-index: 0;
  -ms-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}

header .container {
  position: relative;
  z-index: 2;
}

header .overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: black;
  opacity: 0.5;
  z-index: 1;
}

/* Media Query for devices withi coarse pointers and no hover functionality */

/* This will use a fallback image instead of a video for devices that commonly do not support the HTML5 video element */

@media (pointer: coarse) and (hover: none) {
  header {
    background: url('https://source.unsplash.com/XT5OInaElMw/1600x900') black no-repeat center center scroll;
  }

  header video {
    display: none;
  }
}