- From: Daniel Holbert via GitHub <sysbot+gh@w3.org>
- Date: Tue, 07 Mar 2023 00:23:55 +0000
- To: public-css-archive@w3.org
er, I guess my note duplicated what Tab already said; I skimmed their post too quickly. :) Sorry.
Just to illustrate the roundtripping thing... here's a trivial data-uri testcase to test the expectation that `atan(tan(90deg)` roundtrips as `90deg`):
Testcase:
```
data:text/html,
<style>*{transform-origin:0 0}body{margin: 30px}</style>
<div style="transform:rotate(atan(tan(90deg))">abc</div>
```
Reference:
```
data:text/html,
<style>*{transform-origin:0 0}body{margin: 30px}</style>
<div style="transform:rotate(90deg)">abc</div>
```
Chromium/WebKit render both of these with "c" at the bottom. Firefox renders the testcase with "c" at the top.
(Chromium/WebKit flip the orientation and render "c" at the top if I use `90.001` in the testcase, to explicitly shift to the other side of the magic 90deg discontinuity.)
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Received on Tuesday, 7 March 2023 00:23:57 UTC