Try it Editor: body_default

Edit This Code :



<!DOCTYPE html>
<html>
<head>
<style>
body { 
    display: block;
    margin: 8px;
}
 
body:focus { 
    outline: none;
}
</style>
</head>
<body>

The content of the document......

<p>Change the default CSS settings to see the effect.</p>

</body>
</html>

Result :

body_default_css