xxxxxxxxxx<html lang="en"><head><meta charset="utf-8"><title>Selecting Elements that Doesn't Match a Condition in jQuery</title><style> .highlight{ background: yellow; } </style><script src="https://code.jquery.com/jquery-3.5.1.min.js"></script><script>$(document).ready(function(){ $("ul li").not(":even").addClass("highlight");});</script></head><body> <h2>Unordered List</h2> <ul> <li>First list item</li> <li>Second list item</li> <li>Third list item</li> <li>Fourth list item</li> </ul> <hr> <h2>Another Unordered List</h2> <ul> <li>First list item</li> <li>Second list item</li> <li>Third list item</li> <li>Fourth list item</li> </ul></body></html>