<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
#box{
width:150px;
height:50px;
background:red;
}
#box:hover{
position:relative;
left:-10px;
top:-10px;
}
</style>
</head>
<body>
<div id="box"></div>
</body>
</html>