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<!DOCTYPE html> <html> <head> <script type="text/javascript" src="/jquery/jquery.js"></script> <script> $(document).ready(function(){ $("button").click(function(){ $("ul li:first").hide(); }); }); </script> </head> <body> <p>List 1:</p> <ul> <li>Coffee</li> <li>Milk</li> <li>Tea</li> </ul> <p>List 2:</p> <ul> <li>Coffee</li> <li>Milk</li> <li>Tea</li> </ul> <button>Click me</button> </body> </html>