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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/reftests/border-radius/curved-border-background-nogap.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/reftests/border-radius/curved-border-background-nogap.html')
| -rw-r--r-- | layout/reftests/border-radius/curved-border-background-nogap.html | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/layout/reftests/border-radius/curved-border-background-nogap.html b/layout/reftests/border-radius/curved-border-background-nogap.html new file mode 100644 index 0000000000..01207e7f04 --- /dev/null +++ b/layout/reftests/border-radius/curved-border-background-nogap.html @@ -0,0 +1,36 @@ +<!DOCTYPE html> +<style> + /* + Turns out that the antialiasing on the outer edge of a block with + border-radius is not consistent if the width and border-width are changed + even if the resulting shape should look the same. So clip out the part + that's too far from the center + */ + div.outer { + width: 100px; + height: 100px; + overflow: hidden; + } + /* We want the following constraints to be satisfied: + 1) Entire inner div content area is contained inside the 100px square. + 2) Entire 100px square is contained inside the outer circle of the inner + div's border. + + This requires that the inner div width/height be < 100px and that the + radius of the outer circle be at least 50 * sqrt(2). Let's go with a 75px + radius for that outer circle. We then need to shift our inner div up and + to the left by 25px to center it in the clipping region. + */ + + div.inner { + width: 50px; + height: 50px; + border: 50px solid black; + background: black; + border-radius: 100px; + position: relative; + top: -25px; + left: -25px; + } +</style> +<div class="outer"><div class="inner"></div></div> |