W3.CSSLesson 36Free preview

W3.CSS Code Reuse

This lesson is part of W3.CSS · All levels

Summary

Reuse or reuse means writing a piece once and then using it multiple times, whether it's a CSS class, a theme variable, or a markup piece. This principle reduces duplication so repairs only need to be done in one place. A project that uses discipline to re-code will be much easier to maintain as the pages grow.

Key points

DRY principle: Don't repeat the work that can be saved once
The class components become the most basic way to re-style
The CSS variable makes themes replaceable by slightly changing the value
Separately stored markup pieces reduce manual copying
Over-duplication makes every repair necessary to be repeated many times.

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