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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              <div class="intro" style="margin-top: 20px">
  <!-- Intro -->
  <h1>Scrolleo</h1>
  <p>This is a demo of videos reacting to scrolling.</p>
  <p>Created by <a href="http://markteater.com">Mark Teater</a>, based on a <a href="https://codepen.io/anon/pen/mJwbK">CodePen</a> found on <a href="http://www.reddit.com/r/webdev/comments/2krge1/codepens_killer_html5_video_scrolling_controls_w/">Reddit</a></p>
  <br/>
  <br/>
  <br/>
  <h3>Scroll down for demo</h3>
</div>

<div style="margin-top: 100vh">
  <h3>Video 1 (Only plays 6 seconds of video with 100px delay</h3>
  <!-- Video 1 -->
  <video id="scrolleo-1" width="100%" height="100%" autobuffer="autobuffer" preload="preload">
    <source src="https://www.html5rocks.com/tutorials/video/basics/Chrome_ImF.mp4">
  </video>
</div>

<div style="margin-top: 800px">
  <h3>Video 2 (Plays full length video)</h3>
  <!-- Video 2 -->
  <video id="scrolleo-2" width="100%" height="100%" autobuffer="autobuffer" preload="preload">
    <source src="https://www.html5rocks.com/tutorials/video/basics/Chrome_ImF.mp4">
  </video>
</div>

<!-- Spacer -->
<div style="margin-top: 800px"></div>
            
          
!

CSS

            
              .intro, pre {
  max-width: 600px;
  margin: 0 auto;
}

h1, h3, p {
  font-family: 'Helvetica Neue', Helvetica, Arial;
  text-align: center;
}

h1 {
  font-weight: 300;
  font-size: 3em;
}
h3 {
  font-weight: 100;
  letter-spacing: 1px;
}

body {
    margin: 0;
}
            
          
!

JS

            
              /* Scrolleo - make your video scroll with inertia
 * MIT License - by Mark Teater
 */
(function(window, document, undefined) {
  "use strict";

  var _Scrolleo = function(opts) {
    // Defaults
    this.acceleration = 0.08; //1 is fastest, 0 is slowest, 0.08 is default
    this.secondsPerScreen = null; //Set this to the length of the video. "1" is 1 second.
    this.additionalOffset = 0; //Add or subtract pixels to when the video will start. "10" means that the video will start 10px earlier.
    this.wrapperEl = null;

    // Override defaults
    if (opts) {
      for (var opt in opts) {
        this[opt] = opts[opt];
      }
    }
  };

  var targetScrollPos;

  _Scrolleo.prototype = {
    init: function() {
      var self = this;
      this.wrapper = document.querySelectorAll(this.wrapperEl);

      // get the location of the top of the page
      targetScrollPos = window.pageYOffset;
      Array.prototype.forEach.call(this.wrapper, function(wr) {
        // Set the pixelsPerSecond to the full duration of the video if nothing was set in the options
        if (self.secondsPerScreen === null) {
          self.wrapper[0].addEventListener("loadedmetadata", function() {
            self.secondsPerScreen = self.wrapper[0].duration;
            //recalculate values on video with new pixelsPerSecond
            self.distanceToTop = getElemDistanceToTop(elem);
            self.offsetFromTop = getOffsetFromTop(self.distanceToTop);
            self.pixelsPerSecond = getPixelsPerSecond();
          });
        }

        self.pixelsPerSecond = null;
        self.scrollPos = null;
        self.currentTime = null;
        self.offsetFromTop = null;
        self.distanceToTop = null;

        // http://paulirish.com/2011/requestanimationframe-for-smart-animating/
        // requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
        (function() {
          var lastTime = 0;
          var vendors = ["ms", "moz", "webkit", "o"];
          for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
            window.requestAnimationFrame = window[vendors[x] + "RequestAnimationFrame"];
            window.cancelAnimationFrame = window[vendors[x] + "CancelAnimationFrame"] || window[vendors[x] + "CancelRequestAnimationFrame"];
          }
          if (!window.requestAnimationFrame)
            window.requestAnimationFrame = function(callback, element) {
              var currTime = new Date().getTime();
              var timeToCall = Math.max(0, 16 - (currTime - lastTime));
              var id = window.setTimeout(function() {
                callback(currTime + timeToCall);
              }, timeToCall);
              lastTime = currTime + timeToCall;
              return id;
            };
          if (!window.cancelAnimationFrame)
            window.cancelAnimationFrame = function(id) {
              clearTimeout(id);
            };
        })();

        // requestAnim shim layer by Paul Irish
        window.requestAnimFrame = (function() {
          return (
            window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            function(/* function */ callback, /* DOMElement */ element) {
              window.setTimeout(callback, 1000 / 60);
            }
          );
        })();

        // Define functions to be used by Scrolleo
        var getElemDistanceToTop = function(elem) {
            //http://gomakethings.com/get-distances-to-the-top-of-the-document-with-native-javascript/
            var location = 0;
            if (elem.offsetParent) {
              do {
                location += elem.offsetTop;
                elem = elem.offsetParent;
              } while (elem);
            }
            return location >= 0 ? location : 0;
          },
          getOffsetFromTop = function(distanceToTop) {
            var offset = distanceToTop - window.innerHeight + self.additionalOffset;
            return offset >= 0 ? offset : 0;
          },
          getPixelsPerSecond = function() {
            var pixelsPerSecond = (window.innerHeight + self.wrapper[0].clientHeight) / self.secondsPerScreen;
            return pixelsPerSecond >= 0 ? pixelsPerSecond : 0;
          },
          scrollHandler = function() {
            targetScrollPos = window.pageYOffset;
          },
          resizeHandler = function() {
            //recalculate values on resize
            self.distanceToTop = getElemDistanceToTop(elem);
            self.offsetFromTop = getOffsetFromTop(self.distanceToTop);
            self.pixelsPerSecond = getPixelsPerSecond();
          },
          scrollControl = function() {
            //what to do when scrolling
            self.scrollPos += (targetScrollPos - self.offsetFromTop - self.scrollPos) * self.acceleration;
            self.currentTime = self.scrollPos / self.pixelsPerSecond; //convert scrollPos from pixels to seconds to set self.currentTime
            self.wrapper[0].currentTime = self.currentTime;
            self.wrapper[0].pause();
          };

        // Get an element's distance from the top of the page
        var elem = self.wrapper[0];

        // Calulate the initial size, distance, and offset of each scrolleo video
        self.distanceToTop = getElemDistanceToTop(elem);
        self.offsetFromTop = getOffsetFromTop(self.distanceToTop);
        self.pixelsPerSecond = getPixelsPerSecond();

        self.scrollPos = targetScrollPos - self.offsetFromTop;

        wr.pause();

        // Use requestAnimationFrame to ensure the video is updating when the browser is ready
        window.requestAnimFrame(function render() {
          window.requestAnimFrame(render);
          // Only kickoff scrollControl if the scrollPos of element hasn't reached targetScrollPos
          if (Math.round(self.scrollPos + self.offsetFromTop) != targetScrollPos) {
            scrollControl();
          }
        });

        window.addEventListener("scroll", scrollHandler, false);
        window.addEventListener("resize", resizeHandler, false);
      });
    }
  };
  window.Scrolleo = _Scrolleo;
})(window, document);

// Setup video 1
var scrolleo1 = new Scrolleo({
  acceleration: 0.08, // 1 = instant, 0 = never
  secondsPerScreen: 6, // Defaults to video duration
  additionalOffset: 100, // Positive starts the video later, negative starts earlier. default starts when top of video hits bottom of the screen
  wrapperEl: "#scrolleo-1" // id of the video you want to control
});
scrolleo1.init();

// Setup Video 2
var scrolleo2 = new Scrolleo({
  wrapperEl: "#scrolleo-2"
});
scrolleo2.init();
            
          
!
999px

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