W3C home > Mailing lists > Public > public-css-archive@w3.org > May 2020

Re: [csswg-drafts] [css-sizing-4] Should aspect-ratio apply for width: auto; height: auto;? (#5060)

From: Amelia Bellamy-Royds via GitHub <sysbot+gh@w3.org>
Date: Fri, 15 May 2020 00:03:12 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-628948453-1589500991-sysbot+gh@w3.org>
Some relevant past issues & discussion:

Resolution in  https://github.com/w3c/csswg-drafts/issues/951#issuecomment-319718680 says “Replaced elements with only an intrinsic aspect ratio has a min-content size of 0” but see also #694 about clarifying the flexbox spec.

The current relevant spec text is in the [Flex Layout Algorithm](https://drafts.csswg.org/css-flexbox/#algo-main-item):

> If the flex item has ...
> 
> - an intrinsic aspect ratio,
> - a used flex basis of content, and
> - a definite cross size,
> 
> then the flex base size is calculated from its used inner cross size and the flex item’s intrinsic aspect ratio.

I _think_ if you follow all the linked definitions for terms, that says the Firefox behavior is correct. Note that the `stretch` value for align-items isn't relevant: because the cross-size is definite (a single-row flexbox with defined height), that gets used to determine the cross size of the box with an aspect ratio and no other size constraints.

-- 
GitHub Notification of comment by AmeliaBR
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/5060#issuecomment-628948453 using your GitHub account
Received on Friday, 15 May 2020 00:04:41 UTC

This archive was generated by hypermail 2.4.0 : Tuesday, 5 July 2022 06:42:06 UTC