Video Banner In Html (bootstrap Page) Incorrectly Laid Out

I am attempting to adapt code from this site: Video Header snippet This places a video header and it overrides my entire page and content with itself (the video header). I would li

Solution 1:

If I understand your question :) , I think setting the height and min-height to 200px for the header fix the issue like :

header {
  position: relative;
  background-color: black;
  height: 200px;
  min-height: 200px;
  width: 100%;
  overflow: hidden;
}

see below snippet :

header {
  position: relative;
  background-color: black;
  height: 200px;
  min-height: 200px;
  width: 100%;
  overflow: hidden;
}

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

<scriptsrc="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.slim.min.js"></script><linkhref="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"rel="stylesheet" /><scriptsrc="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js"></script><header><divclass="overlay"></div><videoplaysinline="playsinline"autoplay="autoplay"muted="muted"loop="loop"><sourcesrc="https://storage.googleapis.com/coverr-main/mp4/Mt_Baker.mp4"type="video/mp4"></video><divclass="container h-100"><divclass="d-flex h-100 text-center align-items-center"><divclass="w-100 text-white"><h1class="display-3">Video Header</h1><pclass="lead mb-0">With HTML5 Video and Bootstrap 4</p></div></div></div></header><sectionclass="my-5"><divclass="container"><divclass="row"><divclass="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 build into Bootstrap 4.</p><p>The overlay color can be changed by changing the <code>background-color</code> 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><pclass="mb-0">
          Created by <ahref="https://startbootstrap.com">Start Bootstrap</a></p></div></div></div></section>

Solution 2:

Try deleting all the z-index you have in your CSS and then add z-index: -1; on the media query inside the header, like this:

@media (pointer: coarse) and (hover: none) {
      header {
        background: url('https://source.unsplash.com/XT5OInaElMw/1600x900') black no-repeat center center scroll;
        z-index: -1;
      }
      headervideo {
        display: none;
      }
    }