Size mixin
Created by: MartijnCuppens
The size
mixin is not documented in the docs.
https://github.com/twbs/bootstrap/blob/29f178d89129732d35ae812667709c64cdb28a6f/scss/mixins/_size.scss#L1-L6
Shall we:
- document this
- or remove the mixin (
width
andheight
are not the most complex properties to remember)