* WIP: Mention variables, mixins, and loops in docs
* Add Sass sections to component pages
* add sass docs for forms and content
* Update buttons.md
* Remove empty mixins sections
* Massive update to utilities and some consistency changes
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
* Add disabled state example to the .form-control page
* Document disabled attribute on select too
* Add disabled example for file input
Co-authored-by: XhmikosR <xhmikosr@gmail.com>