<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ $("button").click(function(){ $("p").remove(".test"); });});</script><style>.test { color: red; font-size: 20px;}</style></head><body><p>This is a paragraph.</p><p class="test">This is another paragraph.</p><p class="test">This is another paragraph.</p><button>Remove all p elements with class="test"</button></body></html>