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diff --git a/testing/web-platform/tests/css/css-sizing/aspect-ratio/replaced-element-033.html b/testing/web-platform/tests/css/css-sizing/aspect-ratio/replaced-element-033.html new file mode 100644 index 0000000000..f7f01993ee --- /dev/null +++ b/testing/web-platform/tests/css/css-sizing/aspect-ratio/replaced-element-033.html @@ -0,0 +1,31 @@ +<!DOCTYPE html> +<title>CSS aspect-ratio: img block size with box-sizing (vertical writing mode)</title> +<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio"> +<link rel="match" href="../../reference/ref-filled-green-100px-square.xht" /> +<style> +img { + writing-mode: vertical-rl; + border-top: 40px solid green; +} +</style> + +<p>Test passes if there is a filled green square and <strong>no red</strong>.</p> + +<!-- + 1st: A green rect 60x100. + border-top is 60x40 and the content box is 60x60. + We use 'aspect-ratio: auto && <ratio>', so the aspect-ratio works with + content-box dimensions always. The inline size of the content box is + (100px - 40px) = 60px, so the block size is 60px * 1/1 = 60px. + + 2nd: A green rect 20x100. + border-top is 20x40 and the content box is 20x60. + + 3rd: A green rect 20x100. + border-top is 20x40 and the content box is 20x60 because we compute + the block size by aspect-ratio which works with border-box and so the + block size is 100px / 5 = 20px. +--> +<img src="support/1x1-green.png" style="height: 100px; aspect-ratio: auto 1/10; box-sizing: border-box;" +><img src="support/1x1-green.png" style="height: 60px; aspect-ratio: 1/3; box-sizing: content-box;" +><img src="support/1x1-green.png" style="height: 100px; aspect-ratio: 1/5; box-sizing: border-box;"> |