You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>last-child demo</title> <style> span.solast { text-decoration: line-through; } </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> <span>One,</span> <span>Two,</span> <span>Three,</span> <span>Four</span> </div> <div> <span>White,</span> <span>red,</span> <span>green,</span> <span>blue</span> </div> <br><br> <b>Move the cursor to the green color elements</b> <script> $( "div span:last-child" ) .css({ color:"green", fontSize:"100%" }) .hover(function() { $( this ).addClass( "solast" ); }, function() { $( this ).removeClass( "solast" ); }); </script>