//add special effect
$("#btn4").click(function () {
$("#showBlock").toggle("slow");
});
//add more details effect
$("#btn5").click(function () {
$("#showBlock").show(1000, function() {
alert('Good Job!');
});
});
<body> <!-- add special effect --> <input type="button" id="btn4" value="switchslowBtn"/> <!-- detailed description about the special effect --> <input type="button" id="btn5" value="showBtnEff"/> <!-- Block --> <div id="showBlock" style="display:none;">hi</div> </body>