CSS Padding
By Flavio Copes
Learn how the CSS padding property adds space inside an element border, with padding-top, right, bottom and left, and how the shorthand changes by value count.
The padding CSS property is commonly used in CSS to add space in the inner side of an element.
Remember:
marginadds space outside an element borderpaddingadds space inside an element border
Specific padding properties
padding has 4 related properties that alter the padding of a single edge at once:
padding-toppadding-rightpadding-bottompadding-left
The usage of those is very simple and cannot be confused, for example:
padding-left: 30px;
padding-right: 3em;
Using the padding shorthand
padding is a shorthand to specify multiple padding values at the same time, and depending on the number of values entered, it behaves differently.
1 value
Using a single value applies that to all the paddings: top, right, bottom, left.
padding: 20px;
2 values
Using 2 values applies the first to bottom & top, and the second to left & right.
padding: 20px 10px;
3 values
Using 3 values applies the first to top, the second to left & right, the third to bottom.
padding: 20px 10px 30px;
4 values
Using 4 values applies the first to top, the second to right, the third to bottom, the fourth to left.
padding: 20px 10px 5px 0px;
So, the order is top-right-bottom-left.
Values accepted
padding accepts values expressed in any kind of length unit, the most common ones are px, em, rem, but many others exist.
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