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<html><head><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script><script>$(document).ready(function(){ $("div").on("click", "p", function(){ $(this).slideToggle(); }); $("button").click(function(){ $("<p>This is a new paragraph.</p>").insertAfter("button"); });});</script></head><body><div style="background-color:yellow"> <p>This is a paragraph.</p> <p>Click any p element to make it disappear. Including this one.</p> <button>Insert a new p element after this button</button></div></body></html>