Insights for current selector

[ffoodd]

Referencing this project and tracking it in a11y.css, @aardrian came up with a few suggestions regarding the current selector stack (quoting Adrian):

• Needs object, embed, summary.
• I like the addition of checking for inert, but until it is supported it might give false positives (negatives?).
• I also like checking for non-negative tabindex.
• audio and video might need to check for the controls attribute.
• contenteditable is a good addition too, even if it makes me queasy.

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Initially posted in a11y.css ffoodd/a11y.css-webextension#6 comment.

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I thought that could be out of your radar and still be helpful. This micro-lib is a good idea, thanks :heart: