base.css provides a lot of what you need to style a site. You should
become familar with its rules before making custom positioning or typographic
adjustments. If you are missing particular style that should be there
make a case for it's existance in a pull request.
Each tutorial will rely only on
base.css. To get
started, copy the starter template below that conatins a reference to the
Sometimes styling is so unique to a problem that you need custom rules. This should generally be kept to a minimum and happen in a single document immediately proceeding the reference to
base.css. Remember: any new style you introduce be sure to test and address styling for smaller screens and retina.