.trailing-non-name-start {
// We want to treat interpolation as though it's a valid identifier character,
// which means that if it's followed by a [name character][] that's not a
// [name start character][] it should still treat that as part of the
// identifier.
//
// [name character]: https://drafts.csswg.org/css-syntax-3/#name-code-point
// [name start character]: https://drafts.csswg.org/css-syntax-3/#name-start-code-point
digit: foo#{bar}12;
hyphen: foo#{bar}-12;
double-hyphen: foo#{bar}--12;
}
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