Does ReflowPDF support the CSS property -webkit-box-align?

2 of 2 examples match Chrome. pixel-exact: Our rendering of the example is identical to Chrome's, pixel for pixel — no further apart than the example's own noise floor. Measured against Chrome on 2 examples; the renders and the difference maps are published at https://reflowpdf.com/conformance/css/-webkit-box-align.

Dataset 20261001-0535-e08c90a · measured 2026-10-01 05:35 UTC

-webkit-box-align

✓pixel-exact2 of 2 examples match Chromecompat

Our rendering of the example is identical to Chrome's, pixel for pixel — no further apart than the example's own noise floor.

What the specification says

compat definition

The measurements

2 examples, 2 of them matching Chrome. Each is one declaration on a small page, drawn by Chrome and by our engine. Drag the handle to wipe between them.

-webkit-box-align:end✓pixel-exact

Chrome of this test — Left of the line is our rendering; right of it is the chrome. Drag, or focus the slider and use the arrow keys.

Our render of this test — Left of the line is our rendering; right of it is the chrome. Drag, or focus the slider and use the arrow keys.

336 pixels differ from Chrome, the largest by 48 of 255 on one channel.

Differing pixels: 336
Max channel delta: 48

the example page

-webkit-box-align:center✓pixel-exact

336 pixels differ from Chrome, the largest by 48 of 255 on one channel.

Differing pixels: 336
Max channel delta: 48

the example page

Measured against Chrome 148.0.7778.96 on 2026-10-01, with up to 40 candidate values tried per property. All properties · How the measurement works

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