[webkit-dev] Request for Position on :has() pseudo class
blee at igalia.com
Thu May 13 06:03:00 PDT 2021
Hello WebKit devs,
This is a request for getting position on the :has() pseudo class.
The :has() pseudo class is a selector that specifies elements which has
at least one element that matches the relative selector passed as an
Unlike other selectors, it gives a way to apply a style rule to
preceding elements (preceding siblings / ancestors / preceding siblings
of ancestors) of a certain elements.
This difference is attractive to web developers, but also it generates
lots of concerns mainly about performance and complexity.
We thought that, clarifying those concerns would be helpful for the
discussion. So we started to check feasibility on blink, and were able
to get some meaningful and reasonable results from this step. Based on
the results, we are going to move forward by prototyping.
You can get the details about the current status in here.
* Explainer: https://github.com/Igalia/explainers/tree/main/css/has
* Test summary: https://css-has.glitch.me/
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