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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(){ $(".btn1").click(function(){ $("p").slideUp(1000, function(){ alert("The slideUp() method is finished!"); }); }); $(".btn2").click(function(){ $("p").slideDown(1000, function(){ alert("The slideDown() method is finished!"); }); });});</script></head><body><p>This is a paragraph.</p><button class="btn1">Slide up</button><button class="btn2">Slide down</button></body></html>