@jpamental

I do not see a clear and interoperable way to make them work described by the spec:

Assume there is a font face declaration as follows:

@font-face { /* Font Face 1 */
font-family: ItalAxisExampleFont;
font-style: oblique 0deg 20deg;
}

for a font that has an 'ital' axis ranging from 0 to 1.

And a style rule as follows:

* {
font-family: ItalAxisExampleFont;
font-style: italic;
}

The font matching algorithm describes that after no match for italic is found, oblique 20deg and above should be tried next, so Font Face 1 is matched.

However, as there is no way of specifying font-style: italic 0 1 the @font-face declaration and the actual font axes mismatch. The @font-face declaration pretends to be able to apply a slnt / oblique axis varying between 0 and 20 to the font. However, the font does not have a slnt axis.

If we really do not want to have a way of specifying a way for italic (not oblique) to be variable, then I am missing a clarification in the spec that would say something about how oblique <angle> <angle> and a resulting matched instance / style like oblique 20deg should be applied as ital 1 in terms of variation parameters to a font that does not have a real ital axis but instead is declared with oblique <angle> <angle>.

CC