This is the third post about specific Sass features and this one is about mixins. Previous were import feature and extend feature and there was one about nesting in general. This feature is

Please make sure to read my post on Sass Import because I didn't want to copy-paste first part (it serves as an introduction to this post, as well). Extend represents the next (after

We can follow CSS progress by following the development of its pre-processors. Which preprocessor to use is a different time theme, but it’s really necessary to use one because they allow features