HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>li has ul demo</title>

  <style>

    body { font-family: sans-serif; padding: 16px; max-width: 20rem; }

    ul { line-height: 1.8; }

  </style>

</head>

<body>

  <ul>

    <li>Home</li>

    <li>Products

      <ul><li>Widgets</li><li>Gadgets</li></ul>

    </li>

    <li>About</li>

    <li>Settings

      <ul><li>Profile</li></ul>

    </li>

  </ul>

  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>

  <script>

    $("li:has(ul)").css("fontWeight", "bold");

  </script>

</body>

</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

li:has(ul) — nested lists (Try It)