| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <style> |
| #back { |
| width: 1000px; |
| height: 600px; |
| background-color: green; |
| } |
| #front { |
| width: 800px; |
| height: 400px; |
| background-color: red; |
| border: 50px solid blue; |
| padding: 50px; |
| -webkit-mask-image: url(resources/circle-alpha.svg); |
| -webkit-mask-size: 121px 93px; |
| -webkit-mask-repeat: space space; |
| -webkit-mask-origin: content-box; |
| -webkit-mask-position: 100px 100px; /* Should be ignored because of repeat: space */ |
| -webkit-mask-clip: content-box; |
| } |
| </style> |
| </head> |
| |
| <body> |
| <div id="back"> |
| <div id="front" /> |
| </div> |
| <script> |
| document.body.offsetLeft; |
| </script> |
| </body> |
| </html> |
| |
