| <!DOCTYPE html> |
| <title>CSS Backdrop Filters: Grayscale(50%)</title> |
| <link rel="author" title="Mason Freed" href="mailto:masonfreed@chromium.org"> |
| <link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty"> |
| <link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#supported-filter-functions"> |
| <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=831485"> |
| <link rel="match" href="reference/backdrop-filters-grayscale-001-ref.html"> |
| <meta name="assert" content="Check that backdrop-filter works with grayscale(50%)."/> |
| <style> |
| .square { |
| position: absolute; |
| width: 100px; |
| height: 100px; |
| top: 100px; |
| left: 100px; |
| background: blue; |
| } |
| |
| .filt { |
| backdrop-filter: grayscale(50%); |
| position: absolute; |
| width: 200px; |
| height: 200px; |
| top: 50px; |
| left: 50px; |
| } |
| |
| .greenbox { |
| position: absolute; |
| width: 50px; |
| height: 50px; |
| top: 75px; |
| left: 75px; |
| background: green; |
| } |
| </style> |
| <p>You should see a dark blue rectangle with a green box.</p> |
| <div class="square"></div> |
| <div class="filt"> |
| <div class="greenbox"></div> |
| </div> |
