CSS padding Property
The css padding property sets the required padding space on one to four sides of an element. The padding area is the space between an element and its border. Negative values are not allowed but decimal values are permitted. The element size is treated as fixed, and the content of the element shifts toward the center as padding is increased. The padding property is a shorthand to avoid setting each side separately (padding-top, padding-right, padding-bottom, padding-left).