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/*** T H E - M A G I C - O F - O B J E C T - F I T ***/
/*****************************************************/

.video-container {
  height: 50vh;
  position: relative;
  overflow: hidden;
  @media(min-width: 600px) {
    height: 100vh;
  }
}

video {
  object-fit: cover; // Set the magic
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
}









/*** A E S T H E T I C S ***/
/***************************/

* {
  box-sizing: border-box;
}

body {
  background: #333;
  color: white;
}

.video-container:after {
  content: '';
  display: block;
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: rgba(black, .2);
  z-index: 1;
}

h1 {
  text-transform: uppercase;
  font-weight: 900;
  margin: 0 0 1rem;
  padding: 0;
  line-height: 1;
  font-family: Futura, Helvetica, sans-serif;
  font-size: 5vw;
  @media (max-width: 400px) {
    font-size: 22px;
  }
  @media (min-width: 1200px) {
    font-size: 75px;
  }
}

.callout {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  height: 100%;
  text-align: center;
  position: relative;
  z-index: 10;
}

.support {
  position: fixed;
  bottom: 60px;
  right: 20px;
  text-transform: uppercase;
  font-size: 9px;
  letter-spacing: 1px;
  text-align: right;
  position: relative;
  z-index: 10;
  a {
    color: white;
    text-decoration: none;
    position: relative;
    display: inline-block;
    margin-top: 10px;
    &:before {
      display: block;
      position: absolute;
      content: '';
      bottom: -2px;
      width: 0;
      height: 1px;
      background-color: rgba(white, .3);
      transition: .3s;
    }
    &:hover:before {
      width: 100%;
    }
  }
}

<section class="video-container">
  <video src="https://player.vimeo.com/external/181445574.hd.mp4?s=d24f32d879305e931468d55e4d7ce6efb5a95c39&amp;profile_id=119" autoplay loop playsinline></video>
  <div class="callout">
    <h1>Object-Fit 👍</h1>
    <div>The CSS Background-Size: Cover for Inline Images &amp; Videos</div>
  </div>
  <div class="support">
     <a href="http://caniuse.com/#search=object-fit">Browser Support</a><br>
     <a href="https://github.com/jonathantneal/fitie">Need to support IE &amp; Edge?</a>
  </div>
</section>