What is CSS?

CSS (Cascading Style Sheets) controls how HTML elements look. It handles colors, fonts, spacing, layout - everything visual. 'Cascading' means styles can override each other based on specificity and order.

code.txt

/* CSS Syntax: selector { property: value; } */

h1 {
  color: blue;
  font-size: 32px;
}

p {
  color: #333;
  line-height: 1.6;
}

/* Multiple properties */
.button {
  background: #007bff;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
}

HTML is the skeleton, CSS is the skin, clothes, and makeup. It transforms bare bones into something beautiful.

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Pro tip: CSS can be written inline, in <style> tags, or in external .css files. External files are best for maintainability.