[css-selectors-5] add :heading, :heading(An+B) pseudo classes
#11836
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tabatkins
approved these changes
Mar 6, 2025
zcorpan
approved these changes
Jun 27, 2025
This was referenced Jun 27, 2025
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This should really have had a corresponding HTML PR. Will one be created? |
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This fixes #10296, #351, #1008 by specifying the
:headingand:heading(An+B)pseudo classes, which will match against elements with a defined heading level. As it stands, the current elements with a heading level areh1,h2,h3,h4,h5, andh6.There is a proposal being actively prototyped to allow for more dynamic heading levels that do not strictly adhere to their tagname (see whatwg/html#5033 for more). This proposal (adding the
headingoffset,headingresetattributes) will make it significantly more complex to unilaterally style elements with a heading level of, say, 1, raising the importance of the selectors proposed in this PR.I've Agenda+ the issue #10296 in order to discuss this, the proposed selectors, that we may resolve and merge this PR, but in the meantime I would appreciate editorial review from those that have time.