You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>multiple demo</title> <style> div, span, p { width: 126px; height: 60px; float: left; padding: 3px; margin: 2px; background-color: green; font-size: 14px; } </style> <script src="../../../jquery-1.10.2.js"></script> <script>var clicky_site_ids = clicky_site_ids || []; clicky_site_ids.push(101319977);</script><script async src="//static.getclicky.com/js"></script> <div>div</div> <p class="classOne">p class="classOne"</p> <p class="notMyClass">p class="notMyClass"</p> <span>span</span> <script> $( "div, span, p.classOne" ).css( "border", "3px solid blue" ); </script>