Borders, Padding, Margins & Nested Selectors

CSS lets you easily add borders and padding (space inside a border) where desired. In this layout, styles will be applied using Nested Selectors. Applying styles with Nested Selectors lets you easily style headings in one section of a page differently than headings in another section. Links in one part of a page can be different than links in other, and so on. They are a powerful way to apply styles quickly and easily.