Answer
CSS is used to control presentation separately from document structure. • One style sheet can provide a consistent design across many pages. • Media queries can adapt presentation to different devices and user settings. • Separating styles from HTML usually makes maintenance easier.
💡 Simple Example
body {
font-family: system-ui, sans-serif;
line-height: 1.5;
}
⚡ Quick Revision
CSS keeps presentation reusable, adaptable, and separate from HTML structure.