Specify a background color for every p element that is the second child of its parent, counting from the last child:
The :nth-last-child(n) selector matches every element that is the nth child, regardless of type, of its parent, counting from the last child.
n can be a number, a keyword, or a formula.
Tip: Look at the :nth-last-of-type() selector to select the element that is the nth child, of a specified type, of its parent, counting from the last child.
The :nth-last-child() selector is supported in all major browsers, except IE8 and earlier.
Odd and even are keywords that can be used to match child elements whose index is odd or even.
Here, we specify two different background colors for odd and even p elements, counting from the last child:
Using a formula (an + b). Description: a represents a cycle size, n is a counter (starts at 0), and b is an offset value.
Here, we specify a background color for all p elements whose index is a multiple of 3, counting from the last child:
Your message has been sent to W3Schools.