jQuery animate example lesson 2

tutoring how to select and animate an element

HTML

<p id="btn">button</p>
<div id="test" class=""></div>

CSS

div{
    position:absolute;
    display:block;
    height:80px;
    width:80px;
    left:50px;
    top:50px;
    background-color: blue;
    cursor: pointer;
    display:none;
}
p {
  cursor: pointer;
}

@-webkit-keyframes open-popup {
  0% {
    -webkit-transform: scale(0.1);
    transform: scale(0.1);
  }
  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}
@keyframes open-popup {
  0% {
    -webkit-transform: scale(0.1);
    transform: scale(0.1);
  }
  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}
.open-popup {
  -webkit-animation-name: open-popup;
  animation-name: open-popup;
  -webkit-animation-duration: 0.5s;
  animation-duration: 0.5s;
  -webkit-animation-timing-function: ease-in-out;
  animation-timing-function: ease-in-out;
  -webkit-animation-iteration-count: 1;
  animation-iteration-count: 1;
}

JavaScript

$(function(){
		$('#btn').click(function(){
        $('#test').show();
        $('#test').addClass("open-popup");
        setTimeout(function () {
           $('#test').removeClass("open-popup");
        }, 500);
    });
});