| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| .background { |
| height: 100px; |
| width: 100px; |
| padding: 50px; |
| background-image: repeating-linear-gradient(black 0px, black 25px, white 25px, white 50px); |
| border: 1px solid black; |
| } |
| |
| #box { |
| height: 100px; |
| width: 100px; |
| -webkit-backdrop-filter: blur(0px); |
| } |
| |
| #box.changed { |
| -webkit-backdrop-filter: blur(20px); |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| window.addEventListener('load', function() { |
| window.setTimeout(function() { |
| document.getElementById('box').classList.add('changed'); |
| window.setTimeout(function() { |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }, 0); |
| }, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="background"> |
| <div id="box"> |
| </div> |
| </div> |
| </body> |
| </html> |
