Blitz - WPT: relative-units-004.html

wpt / css / mediaqueries / relative-units-004.html

/css/mediaqueries/relative-units-004.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>CSS Test: Font-relative length units (ch) in width media queries</title>
  <link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
  <link rel="help" href="https://www.w3.org/TR/css3-mediaqueries/#units">
  <link rel="help" href="https://www.w3.org/TR/mediaqueries-4/#units">
  <link rel="match" href="reference/ref-green-body.xht">
  <meta name="assert" content="Font-relative length units (such as 'ch') in media queries should be calculated based on the initial value of 'font-size', not based on author style declarations, such as: html { font-size: 200%; }">
  <style>
:root {
  font-size: 100000px;/* ~87ft */
}
body {
  background: red;
}
p {
  font-size: 24px;
}
  </style>
</head>
<body>
  <p>This should have a green background.</p>
  <script>
    document.body.offsetTop;
  </script>
  <style>
    @media (min-width: 1ch) {
      body {
        background: green;
      }
    }
  </style>
</body>
</html>

/css/mediaqueries/reference/ref-green-body.xht

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Reftest Reference</title>
<link rel="author" title="Chris Rebert" href="http://chrisrebert.com" />
<style type="text/css">
body {
  background: green;
}
p {
  font-size: 24px;
}
</style>
</head>
<body>
<p>This should have a green background.</p>
</body>
</html>