HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>nav last-child</title>
  <style>
    body { font-family: sans-serif; padding: 16px; }
    ul { margin: 12px 0; padding-left: 20px; }
  </style>
</head>
<body>
  <ul class="nav">
    <li>Home</li>
    <li>About</li>
    <li>Contact</li>
  </ul>
  <ul class="nav">
    <li>Dashboard</li>
    <li>Reports</li>
    <li>Settings</li>
  </ul>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("ul.nav li:last-child").css({ fontStyle: "italic", color: "#2563eb" });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

Style last nav item per list (Try It)