<html><head> <script type="text/javascript" src="/jquery/jquery.js"></script></head><body> <ul class="first"> <li class="foo">list item 1</li> <li>list item 2</li> <li class="bar">list item 3</li> </ul> <ul class="second"> <li class="foo">list item 1</li> <li>list item 2</li> <li class="bar">list item 3</li> </ul> <script>$('ul.first').find('.foo').css('background-color', 'red') .end().find('.bar').css('background-color', 'green');</script></body></html>