<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Page Title</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
#mydiv {
position:absolute;
border:1px solid red;
padding: 0 20% 20% 0;
}
</style>
</head>
<body>
<div class="square">
<div class="content">
Hello!
</div>
</div><div id="mydiv"></div>
</body>
</html>