Source code
Revision control
Copy as Markdown
Other Tools
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Reference</title>
<style>
div {
background: green;
height: 100px;
width: 300px;
}
</style>
<body>
<p>Test passes if there is no red visible on the page.</p>
<div></div>
</body>