You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style> body { background-color: #DCDCDC; } h1 { color: green; } p { font-family: "Arial, Helvetica, sans-serif"; font-size: 30px; } </style> <script>var clicky_site_ids = clicky_site_ids || []; clicky_site_ids.push(101319977);</script><script async src="//static.getclicky.com/js"></script> <h1> Welcome to SnoopCode</h1> <p>Start learning CSS on SnoopCode</p>