Advanced Video Docking

<script async custom-element="amp-video" src="https://cdn.ampproject.org/v0/amp-video-0.1.js"></script>

<script async custom-element="amp-video-docking" src="https://cdn.ampproject.org/v0/amp-video-docking-0.1.js"></script>

<script async custom-element="amp-animation" src="https://cdn.ampproject.org/v0/amp-animation-0.1.js"></script>

<style amp-custom>
  body {
    margin: 0;
    background: white;
    font-family: sans-serif;
  }

  header {
    background: white;
    padding: 10px 20px;
    border-bottom: 1px solid #ddd;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 1;
    line-height: 40px;
    font-size: 18px;
  }

  main {
    margin: 0 auto;
    padding: 80px 0 0 0;
    width: 100vw;
  }

  .content {
    height: 200vh;
    width: calc(70vw - 20px);
    padding: 0 20px;
    box-sizing: border-box;
  }

  aside {
    right: 20px;
    margin-left: 70vw;
    position: fixed;
    top: 80px;

    /*
    Define a viewport-based width for the aside. The docking slot will expand
    to fill its width.
    */
    width: 30vw;
  }

  .more-content {
    padding: 20px 20px 0;
    background: #eaeaea;

    /*
    Offset vertical axis by the negative height of the docking slot.
    Since the docking slot is 30vw wide, its height is 16.85vw based on a 16:9
    aspect ratio
    */
    transform: translateY(-16.85vw);
  }

  .more-content ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .more-content li {
    display: block;
    margin: 0 -20px;
  }

  .more-content li a {
    display: block;
    border-top: 1px solid #ddd;
    text-decoration: none;
    padding: 16px 20px;
    color: #2ac;
  }

  h3 {
    margin: 0;
    padding-bottom: 20px;
  }

  /* This is only needed for the preview to work on AMP by Example. You don't
  need to include these set of properties. */
  #abe-preview > div {
    width: 100vw;
    max-width: 100vw;
  }

  /* Ditto. */
  .abe-experiment-warning {
    max-width: calc(70vw - 60px);
  }

  @media (max-width: 600px) {
    /* Hide on smaller devices to fallback to standard docking. */
    #dock-slot {
      display: none;
    }

    /* Reset fixed items. */
    aside,
    header {
      position: static;
    }

    aside {
      margin-left: 0;
      width: 100%;
    }

    .content {
      width: 100vw;
    }

    main {
      padding-top: 20px;
    }
  }
</style>

<amp-animation layout="nodisplay" id="slideDown">
  <script type="application/json">
    {
      "selector": ".more-content",
      "duration": "0.5s",
      "fill": "both",
      "easing": "ease-out",
      "keyframes": [{
          "offset": 0,
          "transform": "translateY(-16.85vw)"
        },
        {
          "offset": 1,
          "transform": "translateY(20px)"
        }
      ]
    }
  </script>
</amp-animation>

<amp-animation layout="nodisplay" id="slideUp">
  <script type="application/json">
    {
      "selector": ".more-content",
      "duration": "0.5s",
      "fill": "both",
      "easing": "ease-out",
      "keyframes": [{
          "offset": 0,
          "transform": "translateY(20px)"
        },
        {
          "offset": 1,
          "transform": "translateY(-16.85vw)"
        }
      ]
    }
  </script>
</amp-animation>

<amp-video
  src="https://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"
  poster="https://peach.blender.org/wp-content/uploads/bbb-splash.png"
  artwork="img/bigbuckbunny.jpg"
  title="Big Buck Bunny"
  album="Blender"
  artist="Blender Foundation"
  width="720"
  height="405"
  layout="responsive"
  controls
  dock="#dock-slot">
</amp-video>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam facilisis odio vitae sem ornare laoreet. Mauris
  sodales convallis eros, non imperdiet mauris ullamcorper eget. Aenean tempus augue eu nisl consectetur
  sagittis. Morbi vel nunc eu leo tristique vehicula. Sed finibus velit luctus, scelerisque mauris luctus,
  tristique justo. Pellentesque non mauris aliquam, mattis dui in, gravida lorem. Suspendisse consectetur dui
  quis quam fringilla pulvinar. Nunc sit amet leo porta, tincidunt dui quis, tempus nisl. Suspendisse aliquet,
  velit ac tincidunt finibus, massa mauris scelerisque dolor, sit amet varius mi felis non ante. Ut imperdiet
  auctor diam id ultricies. Phasellus fermentum ligula at luctus sodales. Nulla semper felis at tempus sagittis.
  Curabitur ac risus non turpis sagittis lobortis ut non tortor. Nunc id tempus nisi.</p>
<p>Vestibulum sit amet posuere sapien. Fusce ac eleifend sapien. Morbi ut vulputate eros, non ornare erat.
  Pellentesque quis mi tempor, venenatis sapien non, eleifend ligula. Lorem ipsum dolor sit amet, consectetur
  adipiscing elit. Aliquam vehicula sem eu massa sollicitudin, quis condimentum risus fermentum. Nunc scelerisque
  posuere nisl ut tempus. Fusce blandit quis tortor nec facilisis.</p>
<p>Mauris sed neque at erat tristique gravida. Suspendisse pretium rhoncus ante id efficitur. Praesent ligula
  purus, mollis sit amet metus non, pulvinar iaculis eros. Integer et nisi rhoncus, aliquet eros non, malesuada
  urna. Nunc tincidunt felis sed molestie ornare. Vivamus est magna, rutrum sit amet erat et, porttitor aliquam
  elit. Aenean condimentum urna nec urna dapibus, ultricies iaculis nisl porttitor. Sed vitae turpis est. Ut
  purus nibh, suscipit a est ut, ullamcorper aliquet velit. Nam egestas urna nec tortor laoreet, eu molestie
  lectus mattis. Pellentesque ut orci dignissim, molestie augue sed, venenatis diam. Curabitur congue metus
  euismod, pretium ligula sit amet, blandit orci. Nulla vel pretium urna. Nullam suscipit nisi eget semper
  pulvinar.</p>
<p>Proin non rutrum ipsum. Duis a vestibulum velit, non tincidunt sapien. Orci varius natoque penatibus et magnis
  dis parturient montes, nascetur ridiculus mus. Donec condimentum malesuada sapien ut aliquet. Donec eleifend
  metus dui, vel dignissim dolor blandit ac. Quisque nunc erat, egestas nec arcu ac, molestie lobortis mauris.
  Maecenas non sapien eleifend, efficitur elit quis, mollis augue. Nunc euismod consectetur orci, sed scelerisque
  massa facilisis a.</p>
<p>Curabitur laoreet in metus fermentum pretium. Nunc pretium iaculis scelerisque. Suspendisse at porttitor odio.
  Sed consequat imperdiet ligula vitae rhoncus. Nullam sagittis dui diam, sit amet convallis augue vestibulum in.
  Etiam in vestibulum eros. Phasellus semper mattis aliquet. Donec ac massa eget felis suscipit rhoncus a sed
  metus. Quisque pharetra feugiat dui, at tempor erat volutpat vel. Donec quam ipsum, suscipit quis nisi eu,
  tincidunt cursus libero. Integer sed pulvinar elit. Suspendisse ex nisi, egestas ac ante fringilla, convallis
  tempor ipsum. Quisque est odio, gravida ac malesuada vitae, scelerisque vel quam.</p>
</div>
<aside>

<amp-layout
    layout="responsive"
    width="16"
    height="9"
    on="dock: slideDown.start; undock: slideUp.start"
    id="dock-slot">
</amp-layout>

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