Blitz - WPT: multicol-dynamic-add-003.html

wpt / css / css-multicol / multicol-dynamic-add-003.html

/css/css-multicol/multicol-dynamic-add-003.html

<!DOCTYPE html>
<html class="reftest-wait">
  <meta charset="utf-8">
  <title>CSS Multi-column Layout Test: Append element to grid with pseudo-elements in multi-column context</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/">
  <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1645714">
  <link rel="match" href="multicol-dynamic-add-003-ref.html">
  <meta name="assert" content="This test checks that dynamically appending an element to a grid container with ::before and ::after pseudo-elements in a multi-column context renders correctly.">

  <script>
  function runTest() {
    document.body.offsetHeight;

    var nav = document.createElement("nav");
    nav.append("text");

    var grid = document.getElementById("grid");
    grid.append(nav);

    document.documentElement.removeAttribute("class");
  }
  </script>

  <style>
  .columns {
    columns: 2;
    column-fill: auto;
    width: 100px;
    height: 10px;
  }
  #grid {
    display: grid;
    grid: 20px 20px / 40px 40px;
  }
  #grid::before, #grid::after {
    content: "";
    grid-row: 1 / 3;
  }
  nav {
    grid-row: 1 / 3;
  }
  </style>

  <body onload="runTest();">
    <div class="columns">
      <div id="grid"></div>
    </div>
  </body>
</html>

/css/css-multicol/multicol-dynamic-add-003-ref.html

<!DOCTYPE html>
<title>CSS Multi-column Layout Reference: Grid with pseudo-elements in multi-column context</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
<link rel="author" title="Mozilla" href="http://www.mozilla.org/">

<style>
.columns {
  columns: 2;
  column-fill: auto;
  width: 100px;
  height: 10px;
}
#grid {
  display: grid;
  grid: 20px 20px / 40px 40px;
}
#grid::before, #grid::after {
  content: "";
  grid-row: 1 / 3;
}
nav {
  grid-row: 1 / 3;
}
</style>

<div class="columns">
  <div id="grid">
    <nav>text</nav>
  </div>
</div>