You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title></title> <script>var clicky_site_ids = clicky_site_ids || []; clicky_site_ids.push(101319977);</script><script async src="//static.getclicky.com/js"></script> <style type="text/css"> table, th, td { border: 3px solid black; border-collapse: collapse; } th, td { padding:10px; } </style> <table> <tr> <th>One</th> <th>Two</th> <th>Three</th> </tr> <tr> <td>HTML</td> <td>CSS</td> <td>JavaScript</td> </tr> <tr> <td>Markup Language</td> <td>Style sheet</td> <td>Scripting Language</td> </tr> </table>