YUI CSS Reset, which nulls out default browser styles.
YUI CSS Base, which together with YUI CSS Reset, sets all browsers to have a common baseline look and feel.
YUI CSS Fonts, which provides a consistent set of font sizes across all browsers.
YUI CSS Grids, which enables you to quickly create sophisticated layouts using very minimal CSS.
YUI CSS Reset, Base, and Fonts come in two flavors: global and contextual. By default, these stylesheets apply to every element in the page. To restrict them to a subsection of the page, you can load the contextual version of the stylesheet. For example:
loads a version of CSS Reset scoped to act only on elements that
descend from the class
yui3-cssreset. Similarly, you can pull
base-context-min.css (scoped ...