Re: [csswg-drafts] [css-text] Allow letter-spacing to have unitless values like line-height (#2165)

@decivilizator We try to avoid unitless numbers that ultimately resolve to lengths, it creates problems in `calc()` IIRC.

The advantage of using percents over a custom unit here is that they are a type of value that already exists, and get preserved distinctly from lengths during inheritance (which is the behavior we need here). But introducing a new unit such as upm is a valid alternative.

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Received on Wednesday, 1 January 2020 01:52:51 UTC