|  | <!DOCTYPE html> | 
|  | <html class="reftest-wait"> | 
|  | <meta charset="utf-8"> | 
|  | <title>CSS Multi-column Layout Test: Insert a block containing a spanner kid. The spanner kid should correctly span across all columns</title> | 
|  | <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com"> | 
|  | <link rel="author" title="Mozilla" href="http://www.mozilla.org/"> | 
|  | <link rel="help" href="https://drafts.csswg.org/css-multicol-1/#column-span"> | 
|  | <link rel="match" href="multicol-span-all-dynamic-add-003-ref.html"> | 
|  | <meta name="assert" content="This test checks that an inserted block containing 'column-span' element should be rendered correctly."> | 
|  |  | 
|  | <script> | 
|  | function runTest() { | 
|  | document.body.offsetHeight; | 
|  |  | 
|  | // Create a subtree like the following, and insert it into column as the | 
|  | // first child. | 
|  | // <div> | 
|  | //   block1 | 
|  | //   <h3>spanner</h3> | 
|  | // </div> | 
|  | var spanner = document.createElement("h3"); | 
|  | var spannerText = document.createTextNode("spanner"); | 
|  | spanner.appendChild(spannerText); | 
|  |  | 
|  | var block1 = document.createElement("div"); | 
|  | var block1Text = document.createTextNode("block1"); | 
|  | block1.appendChild(block1Text) | 
|  | block1.appendChild(spanner); | 
|  |  | 
|  | var column = document.getElementById("column"); | 
|  | column.insertBefore(block1, column.children[0]); | 
|  |  | 
|  | document.documentElement.removeAttribute("class"); | 
|  | } | 
|  | </script> | 
|  |  | 
|  | <style> | 
|  | #column { | 
|  | column-count: 3; | 
|  | column-rule: 6px solid; | 
|  | width: 400px; | 
|  | outline: 1px solid black; | 
|  | } | 
|  | h3 { | 
|  | column-span: all; | 
|  | outline: 1px solid blue; | 
|  | } | 
|  | </style> | 
|  |  | 
|  | <body onload="runTest();"> | 
|  | <article id="column"> | 
|  | <div>block2</div> | 
|  | </article> | 
|  | </body> | 
|  | </html> |