chromium/third_party/blink/web_tests/external/wpt/mathml/relations/html5-tree/css-inline-style-dynamic.tentative.html

<!DOCTYPE html>
<html class="reftest-wait">
  <head>
    <meta charset="utf-8" />
    <title>MathML 'ElementCSSInlineStyle` Dynamic Tests</title>
    <link rel="help" href="https://w3c.github.io/mathml-core/#dom-and-javascript"/>
    <link rel="match" href="css-inline-style-dynamic.tentative-ref.html"/>
    <script src="/mathml/support/feature-detection.js"></script>
    <style>
      #hidden  {
        visibility: hidden;
        background-color: green;
      }
      #red  {
        background-color: red;
      }
    </style>
    <meta
      name="assert"
      content="MathMLElements ElementCSSInlineStyle interface changes update rendering"
    />
    <script type="text/javascript">
      function test()
      {
        MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");
        document.body.offsetTop; // Update layout

        var mspace = document.getElementById("hidden");
        if (mspace.style)
          mspace.style.visibility = "visible";

        mspace = document.getElementById("red");
        if (mspace.style)
          mspace.style.backgroundColor = "green";

        document.documentElement.className = "";
      }
    </script>
  </head>
  <body onload="test()">
    <span>This tests that `ElementCSSInlineStyle` interface changes update rendering.</span>
    <div>
      <math><mspace width="50px" height="100px" id="hidden"/><mspace width="50px" height="100px" id="red"/></math>
    </div>
  </body>
</html>