CSS
pre {
margin:15px 0;
padding:15px;clear:both;
background:#f2f2f2;
color:#666;
border:1px solid #ddd;
overflow:auto;
font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
font-weight: normal;
font-style: normal;
font-size: .9rem;
}
HTML
<!DOCTYPE html>
<html>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>
JavaScript
<script type="text/javascript">
//<![CDATA[
console.log('Prikitiw!');
//]]>
</script>