Re: [csswg-drafts] propose a `hexa()` function that mirrors `rgba()` functionality for hex color codes (#7327) from mangelozzi via GitHub on 2022-05-29 (public-css-archive@w3.org from May 2022)

From: mangelozzi via GitHub <sysbot+gh@w3.org>
Date: Sun, 29 May 2022 11:28:45 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-1140428867-1653823723-sysbot+gh@w3.org>

> BTW, `background: var(--my-color-red)80` doesn't work because (https://drafts.csswg.org/css-variables/#substitute-a-var)
> 
> > [var() substitution](https://drafts.csswg.org/css-variables/#substitute-a-var) takes place at the level of CSS tokens [[css-syntax-3]](https://drafts.csswg.org/css-variables/#biblio-css-syntax-3), not at a textual level; you can’t build up a single token where part of it is provided by a variable

And there seems to be no way to concatenate tokens, so without knowing the details, it seems to me that token handling (as opposed to string handling) closes the possibilities of custom property usage.

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Received on Sunday, 29 May 2022 11:28:46 UTC