Visually, components are unique, flexible units to compose complete layouts. For content, they can trap reusable data into single-use decorations.

Michelangelo once said, "The best of artists has no conception that the marble alone does not contain within itself." Translate this to the world of Web design and you might say, "No matter how great a designer you are, you’re only as good as your content." While the reality of client work sometimes makes it challenging to gather and produce content prior to starting the design, this is now widely accepted as being necessary.

… a strategy for web design that emphasizes accessibility, semantic markup, and external stylesheet and scripting technologies.