CSS Box Model
The CSS Box Model describes the design and layout of elements, consisting of margin, border, padding, and content.
Box Model Example
.box {
width: 200px;
height: 100px;
padding: 20px;
border: 5px solid black;
margin: 10px;
}
Box-Sizing Property
.box {
box-sizing: border-box; /* Includes padding and border in the element's total width/height */
}
Next: CSS Layouts