<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
div {
box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
width: 120px;
height: 120px;
border: 20px solid #969696;
background: #d9dbda;
margin: 10px;
}
div + div {
border: 10px solid #969696;
}
</style>
</head>
<body>
<div>Some text</div>
<div>Some text</div>
</body>
</html>