| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| .container { |
| position: absolute; |
| border-top-right-radius: 10px; |
| overflow: hidden; |
| height: 400px; |
| width: 600px; |
| z-index: 0; |
| box-sizing: border-box; |
| background-color: silver; |
| } |
| |
| .clipping { |
| display: block; |
| position: relative; |
| overflow: hidden; |
| border: 12px solid black; |
| box-sizing: border-box; |
| z-index: 0; |
| height: 400px; |
| width: 450px; |
| } |
| |
| .composited { |
| display: block; |
| width: 600px; |
| height: 400px; |
| background-color: green; |
| will-change: transform; |
| } |
| </style> |
| </head> |
| <body> |
| <p>The green square should be enclosed by the black border.</p> |
| <div class="container"> |
| <div class="clipping"> |
| <div class="composited"></div> |
| </div> |
| </div> |
| </body> |
| </html> |
