All HTML elements can be considered as boxes. In CSS, the term “box model” is used when talking about design and layout.
The CSS box model is essentially a box that wraps around every HTML element. It consists of: margins, borders, padding, and the actual content. The image below illustrates the box model:
- Content – The content of the box, where text and images appear
- Padding – Clears an area around the content. The padding is transparent
- Border – A border that goes around the padding and content
- Margin – Clears an area outside the border. The margin is transparent
border: 25px solid green;
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