A look at the Semantic elements of HTML 5. These elements have no presentational effect, but can be important in structuring the page content in a coherent manner.

Not to be confused with HTML5 semantic elements, the Semantic UI library is a CSS framework for modern web developmeny, significantly simplifying the creation of compelling and sophisticated user experience.

A review of User Experience of Spacebook - first in its unstyled format and then as it is has been restyled via Semantic the UI library.