CSS Chat Summary: 18 November 2021

The meeting took place here on Slack. @notlaura facilitated and @danfarrow wrote up these notes.

Announcements & housekeeping

• The next meeting will be on Thursday 25 November at 17:00 UTC. Please add your name to the Meeting Facilitator schedule document if you would like to contribute by facilitating this or any future meetings
• @notlaura suggested breaking for holidays after December 16th and starting up again January 6th 2022
• @khoipro pointed out that the new meeting time is midnight in APAC which led to a short discussion about meeting times. The conclusion was that we can revisit the meeting time again in the future

CSSCSS Cascading Style Sheets. Custom Properties (#49930)

• @joyously observed that themes which override custom admin properties could break backwards compatibility with older versions of WordPress, as the custom properties they override will not be defined by the adminadmin (and super admin) CSS. She gave the example of the recent addition of a custom property for admin bar height, with a fallback of 0 to indicate that the admin bar is not shown. On sites running older versions of WordPress the custom property would not be defined, so the fallback of 0 would be used by the theme. This is something we could possibly address with a PostCSS script

Thanks everybody!

#core-css, #summary