Source code
Revision control
Copy as Markdown
Other Tools
<!doctype html>
<meta charset="utf-8">
<title>CSS test reference</title>
<style>
body { margin: 0 }
:root {
box-sizing: border-box;
width: 100%;
height: 100%;
border: 1px solid black;
}
</style>
<div>I should not overflow to the next page.</div>