# :nth-of-type() Selector

## nth-of-type ( index ) version added: 1.9

- index
  Type: Number/String
  The index of each child to match, starting with 1, the string even or odd, or an equation ( eg. :nth-of-type(even), :nth-of-type(4n) )

Description: Selects all elements that are the nth child of their parent in relation to siblings with the same element name.

Because jQuery's implementation of `:nth-` selectors is strictly derived from the CSS specification, the value of `n` is "1-indexed", meaning that the counting starts at 1. For other selector expressions such as `:eq()` or `:even` jQuery follows JavaScript's "0-indexed" counting.

Further discussion of this usage can be found in the W3C CSS specification.

## Examples:

#### Example: Find each span that is second in relation to its sibling spans.

    <!doctype html>
    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>css demo</title>

      <style>

      .nth {
        color: red;
      }

      </style>

      <script src="//code.jquery.com/jquery-1.10.2.js"></script>
    </head>
    <body>

    <div>
      <span>John</span>,
      <b>Kim</b>,
      <span>Adam</span>,
      <b>Rafael</b>,
      <span>Oleg</span>
    </div>
    <div>
      <b>Dave</b>,
      <span>Ann</span>
    </div>
    <div>
      <i><span>Maurice</span></i>,
      <span>Richard</span>,
      <span>Ralph</span>,
      <span>Jason</span>
    </div>

    <script>

    $( "span:nth-of-type(2)" )
      .append( "<span> is 2nd sibling span</span>" )
      .addClass( "nth" );

    </script>

    </body>
    </html>

#### Demo: