multicol-span-all-dynamic-add-011.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-multicol/multicol-span-all-dynamic-add-011.html - WPT Dashboard Interop Dashboard

<!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>