Support shorthand flex

[davesnx]

Hey @alexfedoseev

I'm working on https://github.com/davesnx/re-styled-ppx and would be amazing to have support for shorthand flex properties, like flex('some(1., 1.)) or flex('some(1.)).

The change wouldn't be massive, it's somehow making grow and basis optionals.
https://github.com/MinimaHQ/re-css/blob/master/src/Css.re#L1785-L1794

WDYT?

PD. I'm happy to jump into making a PR

[alex35mil]

Hey @davesnx, sounds good to me. But please check w/ @jchavarri if it would be ok for bs-emotion since it's the main consumer at the moment.

[davesnx]

Sure, will do that. Thanks @alexfedoseev

Do we have any list of support with emotion? I know that these things take a lot of time, but just in case.

[davesnx]

I created a list of "all CSS properties" and some that aren't supported in bs-emotion. https://github.com/davesnx/re-styled-ppx/blob/master/demo/src/index.re

Wasn't the point of this issue, but maybe cool to have somewhere.