The negation pseudo-class,
:not, is used to select an element and negate the style that is applied to the element.
Some examples of using the :not pseudo-class are given as follows :
button:not([DISABLED]) /* Example 1 */ *:not(P) /* Example 2 */ html|*:not(:link):not(:visited) /* Example 3 */
The description of the preceding examples is given as follows :