| <!DOCTYPE html> | |
| <html> | |
| <style> | |
| :root { | |
| overflow: hidden; | |
| } | |
| .c { | |
| position: absolute; | |
| opacity: 0.8; | |
| width: 100px; | |
| height: 100px; | |
| top: 200px; | |
| left: 200px; | |
| } | |
| .c > div { | |
| position: absolute; | |
| width: 100px; | |
| height: 100px; | |
| top: -1000px; | |
| left: -1000px; | |
| border: 1000px solid; | |
| border-right-color: green; | |
| border-top-color: blue; | |
| border-left-color: orange; | |
| border-bottom-color: red; | |
| will-change: transform; | |
| } | |
| </style> | |
| <div class=c> | |
| <div></div> | |
| </div> | |
| </html> |