| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style type="text/css"> | |
| .container { | |
| width: 60px; | |
| height: 60px; | |
| } | |
| .background { | |
| width: 50px; | |
| height: 50px; | |
| background-color: green; | |
| } | |
| .content { | |
| width: 25px; | |
| height: 25px; | |
| background-color: blue; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <div class="background"> | |
| <div class="content"></div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |