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 |   1 <!DOCTYPE html> | 
 |   2 <!-- | 
 |   3 Copyright 2012 The Polymer Authors. All rights reserved. | 
 |   4 Use of this source code is goverened by a BSD-style | 
 |   5 license that can be found in the LICENSE file. | 
 |   6 --> | 
 |   7 <meta charset="utf-8"> | 
 |   8 <script src="shadowdom.js"></script> | 
 |   9 <style> | 
 |  10  | 
 |  11 .el, | 
 |  12 .sr { | 
 |  13   height: 300px; | 
 |  14   width: 300px; | 
 |  15 } | 
 |  16  | 
 |  17 </style> | 
 |  18 <textarea class="el" placeholder="Element host"></textarea> | 
 |  19 <textarea class="sr" placeholder="Shadow Root"></textarea> | 
 |  20 <button onclick="update()">Update</button> | 
 |  21  | 
 |  22 <div class="test">Real</div> | 
 |  23  | 
 |  24 <script> | 
 |  25  | 
 |  26 var el = document.querySelector('.test'); | 
 |  27 var sr = el.createShadowRoot(); | 
 |  28  | 
 |  29 sr.innerHTML = 'Before <content></content> After'; | 
 |  30  | 
 |  31 function update() { | 
 |  32   el.innerHTML = document.querySelector('.el').value; | 
 |  33   sr.innerHTML = document.querySelector('.sr').value; | 
 |  34 } | 
 |  35  | 
 |  36 document.querySelector('.el').value = el.innerHTML; | 
 |  37 document.querySelector('.sr').value = sr.innerHTML; | 
 |  38  | 
 |  39 </script> | 
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