:last-child Selector

last-child ( ) version added: 1.1.4

Description: Selects all elements that are the last child of their parent.

While :last matches only a single element, :last-child can match more than one: one for each parent.

Examples:

Example: Find the last span in each matched div and add some css plus a hover state. 

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

  <style>

  span.solast {
    text-decoration: line-through;
  }

  </style>

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

<div>
  <span>John,</span>
  <span>Karl,</span>
  <span>Brandon,</span>
  <span>Sam</span>
</div>
<div>
  <span>Glen,</span>
  <span>Tane,</span>
  <span>Ralph,</span>
  <span>David</span>
</div>

<script>

$( "div span:last-child" )
  .css({ color:"red", fontSize:"80%" })
  .hover(function() {
    $( this ).addClass( "solast" );
  }, function() {
    $( this ).removeClass( "solast" );
  });

</script>

  
</body>
</html>

Demo: