Answer
CSS provides reusable rules for styling and laying out documents. • Shared style sheets reduce repeated presentation code. • The cascade allows defaults, components, states, and overrides to work together. • Responsive and user-preference queries support different environments.
💡 Simple Example
:root {
color-scheme: light dark;
}
⚡ Quick Revision
CSS improves reuse, consistency, adaptability, and maintainability.