| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 0; | |
| } | |
| html:before { | |
| content: ''; | |
| background: blue; | |
| margin: 10px; | |
| width: 200px; | |
| height: 200px; | |
| position: fixed; | |
| z-index: -1; | |
| } | |
| html { | |
| background-image: linear-gradient(white, white); | |
| background-attachment: fixed; | |
| background-position: 50% 50%; | |
| background-size: 400px 400px; | |
| background-color: red; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |