All HTML elements are basically 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:
Explanation of the different parts:
- 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
The box model allows us to add a border around elements, and to define space between elements.
(text adapted from https://www.w3schools.com/css/css_boxmodel.asp)
