Answer
CSS can be supplied through external style sheets, style elements, or style attributes. • External style sheets are linked resources and are reusable across documents. • A style element places CSS rules inside an HTML document. • A style attribute applies declarations directly to one element.
💡 Simple Example
<link rel="stylesheet" href="styles.css">
<style>.note { color: navy; }</style>
<p style="font-weight: 700">Important</p>
⚡ Quick Revision
External, embedded, and inline styles differ by where their declarations are written.