# :only-of-type Selector

## only-of-type ( ) version added: 1.9

Description: Selects all elements that have no siblings with the same element name.

If the parent has other child elements with the same element name, nothing is matched.

## Examples:

#### Example: Change the text and add a border for each button that is the only child button of its parent.

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

      <style>

      div {
        width: 100px;
        height: 80px;
        margin: 5px;
        float: left;
        background: #b9e;
      }
      span {
        padding: 2px;
        margin: 3px;
        line-height: 1.4;
        border: 1px solid #000;
      }

      </style>

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

    <div>
      <button>Sibling!</button>
      <button>Sibling!</button>
    </div>

    <div>
      <button>Sibling!</button>
    </div>
    <div>
      None
    </div>

    <div>
      <button>Sibling!</button>
      <span>Sibling!</span>
      <span>Sibling!</span>
    </div>

    <div>
      <button>Sibling!</button>
    </div>

    <script>

      $( "button:only-of-type" ).text( "Alone" ).css( "border", "2px blue solid" );

    </script>

    </body>
    </html>

#### Demo: