CSS Box-Size Property-The CSS box-sizing property allows us to include the padding and border property in an element's total width and height property. For example, just design a box-model with 100px box-width, 100px of height, 5px border, and 5px padding of the box it means that the actual width and height of box-size is 110px.
Basic Formulas of Box-Size
- width + padding + border = actual width of an element
- height + padding + border = actual height of an element