<!DOCTYPE html>
<html lang="ja-JP">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,user-scalable=yes,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.5">
<title></title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script>
$(function(){
$("input").click(function(){
$("div").addClass("left").removeClass("right")
});
});
</script>
<style>
.right{
position:fixed;
top:20%;
left:90%;
margin-left:-100px;
margin-top:-100px;
width:200px;
height:200px;
text-align:center;
line-height:200px;
background-image:url(img/before.png);
}
.left{
position:fixed;
top:50%;
left:50%;
margin-left:-100px;
margin-top:-100px;
width:200px;
height:200px;
text-align:center;
line-height:200px;
background-image:url(img/after.png);
/*これらを記述するとアニメーションが加わります*/
/*
-moz-transition-property:top, left;
-webkit-transition-property:top, left;
-o-transition-property:top, left;
-ms-transition-property:top, left;
-moz-transition-duration:500ms;
-webkit-transition-duration:500ms;
-o-transition-duration:500ms;
-ms-transition-duration:500ms;
-moz-transition-timing-function:ease-in-out;
-webkit-transition-timing-function:ease-in-out;
-o-transition-timing-function:ease-in-out;
-ms-transition-timing-function:ease-in-out;
*/
}
</style>
</head>
<body>
<div class="right">
</div>
<input type="button" value="click">
</body>
</html>