Update some browser default values to use rems instead of ems for scalable component spacing.Here are our guidelines and reasons for choosing what to override in Reboot: For example, we reboot some styles for a simpler baseline and later provide. Additional styling is done only with classes. Reboot builds upon Normalize, providing many HTML elements with somewhat opinionated styles using only element selectors. Reboot, a collection of element-specific CSS changes in a single file, kickstart Bootstrap to provide an elegant, consistent, and simple baseline to build upon.
