| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <meta charset="utf-8"> |
| <title>PNG Third Edition: animated PNG, blend ops</title> |
| <link rel="author" title="Philip Taylor" href="mailto:excors@gmail.com"> |
| <link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> |
| <link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> |
| <link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> |
| <link rel="match" href="apng-lime-rectangle-ref.html"> |
| <meta name="assert" content="If blend_op is APNG_BLEND_OP_SOURCE all color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region."> |
| <script> |
| const el = document.querySelector(".reftest-wait"); |
| setTimeout(() => { |
| el.classList.remove('reftest-wait'); |
| }, 1200); |
| </script> |
| <style> |
| .test { |
| width: 128px; |
| height: 64px; |
| background-color: white; |
| background-image: |
| linear-gradient(45deg, #ccc 25%, transparent 25%), |
| linear-gradient(-45deg, #ccc 25%, transparent 25%), |
| linear-gradient(45deg, transparent 75%, #ccc 75%), |
| linear-gradient(-45deg, transparent 75%, #ccc 75%); |
| background-size: 16px 16px; |
| background-position: 0 0, 0 8px, 8px -8px, -8px 0px; |
| } |
| </style> |
| <body> |
| <p>Test passes if you see a lime green rectangle, and no red.</p> |
| <div class="test"><img src="support/017.png" alt=""></div> |
| </body> |
| </html> |
