feature-request: css attribute selectors about htmlpurifier HOT 6 OPEN

This is using CSSTidy? I don't think you can do attribute selectors in inline CSS.

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I don't need it for inline CSS. :)

You need it for two cases. A html-file with <style> in it or to check a css-file. I use both.

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I'm running into this exact situation. Using HTMLPurifier & CSSTidy — the output is stripping rules like .fonts-stage-2 [aria-label][data-balloon-pos]:after{color:#fff;}

I'm using the latest versions of both utilities.

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Big Q here is whether or not CSSTidy understands attribute selectors. If it does, it's probably just a matter of tweaking HTML Purifier code to stop stripping them out. If it doesn't, that's going to be more work, and an update to CSSTidy

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OK, so someone just has to go to library/HTMLPurifier/Filter/ExtractStyleBlocks.php and extend the selector processing code to add attribute selectors (and make sure you don't introduce any security vulnerabilities in the process)

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