<html><head> <style> div { width: 80px; height: 80px; background: #abc; border: 2px solid black; margin: 10px; float: left; } div.after { border-color: red; } </style> <script type="text/javascript" src="/jquery/jquery.js"></script></head><body> <div>first</div> <div>sibling<div>child</div></div> <div>sibling</div> <div>sibling</div><script>$("div:first").nextAll().addClass("after");</script></body></html>