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Re: [csswg-drafts] [css-text] How to handle leading ideographic space sequences ? (#4180)

From: Javier Fernandez Garcia-Boente via GitHub <sysbot+gh@w3.org>
Date: Thu, 17 Sep 2020 10:33:21 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-694145870-1600338800-sysbot+gh@w3.org>
Hi florian,

Despite we have closed this issue, which I agree with the resolution, I'm not sure the changes in the test reflected what we have resolved; it may be possible I haven't understood it correctly, so I'd appreciate this get clarified before I reopen it, or maybe better create a new issue.

The test I'm talking about is [trailing-ideographic-space-001.html ](https://github.com/web-platform-tests/wpt/blob/master/css/css-text/white-space/trailing-ideographic-space-001.html). There is a comment in that test precisely stating that the trailing ideographic space, which is hanging, should not extend the width of its parent, which has max-content width. 

However, this trailing ideographic space is followed by a forced-break, so If I understood correctly what the spec dictates, it should [conditionally hang](https://drafts.csswg.org/css-text-3/#conditionally-hang), which means that it should account for it's parent's max-content width.

>  Glyphs that conditionally hang are not taken into account when computing min-content sizes and any sizes derived thereof, but they are taken into account for max-content sizes and any sizes derived thereof. 

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