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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <html> | 2 <html> |
3 <head> | 3 <head> |
4 <style type="text/css" media="screen"> | 4 <style type="text/css" media="screen"> |
5 .hidesOverflow { | 5 .hidesOverflow { |
6 background-color: blue; | 6 background-color: blue; |
7 width: 200px; | 7 width: 200px; |
8 height: 200px; | 8 height: 200px; |
9 overflow: hidden; | 9 overflow: hidden; |
10 } | 10 } |
11 | 11 |
12 .shouldNotBeVisible { | 12 .shouldNotBeVisible { |
13 background-color: red; | 13 background-color: red; |
14 width: 140px; | 14 width: 140px; |
15 height: 140px; | 15 height: 140px; |
16 } | 16 } |
17 | 17 |
18 .composited { | 18 .composited { |
19 -webkit-transform: translatez(0); | 19 transform: translatez(0); |
20 } | 20 } |
21 | 21 |
22 .masked { | 22 .masked { |
23 -webkit-mask-box-image: url(../resources/alpha-blocks.png); | 23 -webkit-mask-box-image: url(../resources/alpha-blocks.png); |
24 background-color: lime; | 24 background-color: lime; |
25 width: 300px; | 25 width: 300px; |
26 height: 300px; | 26 height: 300px; |
27 } | 27 } |
28 </style> | 28 </style> |
29 </head> | 29 </head> |
30 <body> | 30 <body> |
31 <!-- | 31 <!-- |
32 https://bugs.webkit.org/show_bug.cgi?id=93558 | 32 https://bugs.webkit.org/show_bug.cgi?id=93558 |
33 | 33 |
34 Scenario: The alpha-blocks mask has a checkerboard pattern of opaque/transparen
t | 34 Scenario: The alpha-blocks mask has a checkerboard pattern of opaque/transparen
t |
35 sections. The top-left section of the mask should be opaque, so the red div sho
uld not be | 35 sections. The top-left section of the mask should be opaque, so the red div sho
uld not be |
36 visible underneath the mask. However, in chromium there was a bug where the mas
k was | 36 visible underneath the mask. However, in chromium there was a bug where the mas
k was |
37 accidentally being resized to the clip area, incorrectly exposing the red div. | 37 accidentally being resized to the clip area, incorrectly exposing the red div. |
38 --> | 38 --> |
39 <div class="hidesOverflow"> | 39 <div class="hidesOverflow"> |
40 <div class="shouldNotBeVisible"> | 40 <div class="shouldNotBeVisible"> |
41 <div class="composited masked"> | 41 <div class="composited masked"> |
42 </div> | 42 </div> |
43 </div> | 43 </div> |
44 </body> | 44 </body> |
45 </html> | 45 </html> |
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