Re: [csswg-drafts] [css-scoping-1] should shadow-piercing descendant combinator (>>>) still be in specification

It's not a general requirement, no.  Before the advent of `:nth-child()`, it *definitely* wasn't true of ordinary CSS; if you wanted a unique path, you had to make sure it was unique yourself, and possible add a uniquifier, like an ID.  The "supported in stylesheets" variants of shadow selectors we appear to be settling on (`::part()`) also don't support that requirement, since they're equivalent to classes.

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Received on Wednesday, 5 April 2017 19:36:16 UTC