| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <style> | |
| #x { | |
| width: 200px; | |
| height: 200px; | |
| border: 40px; | |
| border-style: solid; | |
| border-color: transparent; | |
| background-image: repeating-linear-gradient(to bottom right, white, black, white 30px); | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="x"></div> | |
| </body> | |
| </html> |