color-tween/examples/browser.html at master · 13protons/color-tween · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Color Tween Demo</title>
    <style>
      body {
        font-family: sans-serif;
        background-color: #ffa500;
      }
      button {
        font-size: 1.4em;
        padding: 1em 2em;
      }
    </style>
  </head>
  <body>
    <h1>Hello, Color Tweens!</h1>
    <button onclick="makeItSo()">Show Me</button>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script src="../dist/color-tween.min.js"></script>
    <script>
      var tween;
      function makeItSo(){
        tween = new ColorTween('#ffa500', '#40e0d0')
                      .duration(3000)
                      .easing('linear')
                      .onUpdate(update)
                      .onEnd(function(){
                        console.log('All Done!');
                      })
                      .start(animate);
      }

      function animate(time) {
          if (tween.update()) {
            requestAnimationFrame(animate);
          }
      }

      function update(color) {
        $('body').css('background-color', color.hex())
      }

    </script>
  </body>
</html>