body            { font-family: Arial, sans-serif; }
.exit			{ background:#ccc; padding:15px; position:absolute; right:20px; top:20px; }
.logout			{ background:#ccc; padding:15px; position:absolute; right:80px; top:20px; }
button.feature  { line-height: 20px; padding: 20px; }
code            { white-space: pre; }