Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
<style id="jsbin-css">
h1{
  color:red;
}
</style>
</head>
<body>
<h1>
  Test
</h1>


<script id="jsbin-source-css" type="text/css">h1{
  color:red;
}</script>
</body>
</html>