Source code
Revision control
Copy as Markdown
Other Tools
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Reference</title>
<style>
.blue {
background: blue;
}
</style>
<body>
<p>Test passes if there are three lines of "Filler Text" below and the middle line has a blue background.</p>
<div>Filler Text</div>
<div class="blue">Filler Text</div>
<div>Filler Text</div>
</body>