CSS Tutorial

The language for styling web pages.

Chapter Quiz Exercises
Course Topics
CSS Introduction CSS Syntax CSS Selectors CSS Colors CSS Backgrounds CSS Borders CSS Margins CSS Padding CSS Box Model CSS Text CSS Fonts CSS Display CSS Position CSS Flexbox CSS Grid CSS Transitions CSS Animations CSS Media Queries CSS Variables CSS Gradients CSS Shadows CSS 2D Transforms CSS 3D Transforms CSS Pseudo-classes CSS Pseudo-elements CSS Float CSS Overflow CSS Z-index CSS Opacity CSS Buttons

CSS Box Model

The CSS Box Model

In CSS, every element is a box. The CSS box model is a box that wraps around every HTML element. It consists of: content, padding, border, and margin.

Box Model Layers (inside → outside):

  1. Content - The actual text/image
  2. Padding - Space between content and border
  3. Border - A line surrounding the padding
  4. Margin - Space outside the border

Tip: Use box-sizing: border-box so padding and border are included in the total width.

Try It Yourself

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Source Code
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Topics
CSS Introduction CSS Syntax CSS Selectors CSS Colors CSS Backgrounds CSS Borders CSS Margins CSS Padding CSS Box Model CSS Text CSS Fonts CSS Display CSS Position CSS Flexbox CSS Grid CSS Transitions CSS Animations CSS Media Queries CSS Variables CSS Gradients CSS Shadows CSS 2D Transforms CSS 3D Transforms CSS Pseudo-classes CSS Pseudo-elements CSS Float CSS Overflow CSS Z-index CSS Opacity CSS Buttons