Awesome CSS Trick
Live Html in Browser:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Css Trick</title>
</head>
<body>
<style contenteditable="true" style="display: block; white-space: pre;">
* { transition: all 0.4s; }
html {
font-family: monospace;
font-size: 24px;
color: white;
background: #BADA55;
}
</style>
</body>
</html>