Re: [csswg-drafts] [selectors-4] :nth-child and friends are either underdefined or defined wrong

Isn't the ['An + B' notation](https://drafts.csswg.org/css-syntax/#anb) described by reference to the CSS Syntax module for all these definitions?

> The An+B notation defines an integer step (A) and offset (B), and represents the An+Bth elements in a list, for every positive integer or zero value of n, with the first element in the list having index 1 (not 0).

The edge cases like A=0 are described in the next (though non-normative)[ section 6.1](https://drafts.csswg.org/css-syntax/#anb-syntax).

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Received on Wednesday, 26 April 2017 09:51:13 UTC