examples/amp-orientation-observer-panorama.amp.html

<html ⚡ lang="en">

<head>
  <meta charset="utf-8">
  <title>amp-orientation-observer</title>
  <link rel="canonical" href="amps.html">
  <meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
  <script async custom-element="amp-animation" src="https://cdn.ampproject.org/v0/amp-animation-0.1.js"></script>
  <script async custom-element="amp-orientation-observer" src="https://cdn.ampproject.org/v0/amp-orientation-observer-0.1.js"></script>
  <style amp-custom>
    .panorama {
        height: 100vh;
        width: 100vw;
        overflow-x: hidden;
        overflow-y: hidden;
    }
    .panorama amp-img {
            transform: translate(-50%, -50%);
    }
  </style>
  <style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
  <script async src="https://cdn.ampproject.org/v0.js"></script>
</head>

<body>
    <amp-animation id="gammaAnim" layout="nodisplay">
        <script type="application/json">
            {
            "duration": "3s",
            "fill": "both",
            "direction": "alternate",
            "animations": [
            {
                "selector": ".panorama amp-img",
                "keyframes": [
                { "transform": "translateX(-100%)" },
                { "transform": "translateX(0%)" }
                ]
            }
            ]
        }
        </script>
    </amp-animation>
    <amp-orientation-observer
        gamma-range="-90 90"
        on="gamma:gammaAnim.seekTo(percent=event.percent)"
        layout="nodisplay" smoothing="5">
  </amp-orientation-observer>
    <div class="panorama">
        <amp-img alt="A view of the mountains"
            src="img/panorama1.jpg"
            width="2920"
            height="728"
            layout="fixed">
        </amp-img>
    </div>
</body>
</html>