Fri, 16 Jan 2015 18:13:44 +0100
Integrate suggestion from review to improve consistency with existing code.
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <style type="text/css">
5 html, body {
6 margin: 0; padding: 0;
7 background-color: green;
8 }
9 div {
10 margin: 30px 20px;
11 background-color: red;
12 height: 20px;
13 }
14 div div {
15 margin: 30px;
16 background-color: blue;
17 }
18 </style>
19 </head>
20 <body>
21 <div><div></div></div>
22 </body>
23 </html>