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<html><head><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script><script>$(document).ready(function(){ $("button").click(function(){ $("h1, h2, p").removeClass("blue"); });});</script><style>.blue { color: blue;}</style></head><body><h1 class="blue">Heading 1</h1><h2 class="blue">Heading 2</h2><p class="blue">This is a paragraph.</p><p>This is another paragraph.</p><button>Remove class from elements</button></body><!-- Mirrored from www.w3schools.com/jquery/tryit.asp?filename=tryjquery_dom_removeclass by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 16:49:41 GMT --></html>