CSS Box Model

The CSS Box Model is a fundamental concept that describes how elements are displayed and spaced on a webpage. It includes the content, padding, border, and margin areas of an element. Understanding the box model is essential for designing layouts and managing element spacing.

Key Points on CSS Box Model:

Properties

CSS Box Model Structure:

Syntax Example

/* Box model structure */
        .element {
            width: 200px;
            height: 100px;
            padding: 10px;
            border: 5px solid #000;
            margin: 15px;
        }

Examples of CSS Box Model:

Code Example: Default Box Model

.box {
            width: 200px;
            height: 100px;
            padding: 20px;
            border: 5px solid black;
            margin: 10px;
            background-color: lightblue;
        }

Output

Default Box Model

Code Example: Box Sizing

.box {
            width: 200px;
            padding: 20px;
            border: 5px solid black;
            margin: 10px;
            box-sizing: border-box;
            background-color: lightgreen;
        }

Output

Box Sizing: Border-Box

Common Box Model Properties:

By mastering the box model, you can create precise layouts and control spacing effectively, ensuring that your elements are displayed as intended.