Scaffolding refers to the global resets and dependencies that Primer is built upon.
Primer makes use of certain HTML elements and CSS properties that require the use of the HTML5 doctype. Include it at the beginning of all your pages.
border-box for every element in Primer. This allows us to more easily assign widths to elements that also have
For improved cross-browser rendering, we use Normalize.css to correct small inconsistencies across browsers and devices.