Description

This pseudo-class matches elements on the basis of their positions within a parent element’s list of child elements. The pseudo-class accepts an argument, N, which can be a keyword, a number, or a number expression of the form an+b. For more information, see Understanding :nth-child Pseudo-class Expressions.

If N is a number or a number expression, :nth-last-child(N) matches elements that are followed by N-1 siblings in the document tree.

This example selector will match the last four list items in any list, be it ordered or unordered:

li:nth-last-child(-n+4) {
  ⋮ declarations
}

This selector will match any paragraph that’s the last child element of its parent element:

p:nth-last-child(1) {
  ⋮ declarations
}

This is, of course, equivalent to the selector p:last-child.

Example

This example selector will match the last row of any table:

tr:nth-last-child(1) {
  ⋮ declarations
}

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