JavaScript Tutorial

first-child

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>first-child demo</title>
  <style>
  span {
    color: #008;
  }
  span.sogreen {
    color: green;
    font-weight: bolder;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
    <div>
      <span>John,</span>
      <span>Karl,</span>
      <span>Brandon</span>
    </div>
    <div>
      <span>Glen,</span>
      <span>Tane,</span>
      <span>Ralph</span>
    </div>
    <script>
        $( "div span:first-child" )
        .css( "text-decoration", "underline" )
        .hover(function() {
            $( this ).addClass( "sogreen" );
        }, function() {
            $( this ).removeClass( "sogreen" );
        });
    </script>
</body>
</html>