CSS: calc
calc()
lets you do a simple calculation, for
CSS property values.
It can be used anywhere that requires a length or number.
Example:
width: calc(100% - 80px);
you can use any of the following operators:
+
- Add. (🛑 WARNING: must have space before and after)
-
- Subtract. (🛑 WARNING: must have space before and after)
*
- Times. One of the argument must be a number.
/
- Divide. The right-hand side must be a number.
Parentheses can be used for grouping.