Instead of using individual properties for
top, bottom, right and left padding,
the single padding property can be used
to specify different values for each direction.
Four values
If this property has
four different values
separated by spaces:
10px is top padding.
20px is right padding.
30px is bottom padding.
40px is left padding.
The values get assigned in clockwise direction starting from the top.
Three values
If this property has three values:
10px is top padding.
20px is right and left padding.
30px is bottom padding.
Two values
If this property has two values:
Top padding and bottom padding are both 10px.
Right padding and left padding are both 20px.
One value
If this property has only one value:
All four padding values are 10px.