app/views/layouts/nostyle.html.erb
<!DOCTYPE html>
<html lang="en">
<head>
<script
src="https://code.jquery.com/jquery-3.6.0.slim.js"
integrity="sha256-HwWONEZrpuoh951cQD1ov2HUK5zA5DwJ1DNUXaM6FsY="
crossorigin="anonymous"></script>
</head>
<body>
<%# render 'layouts/navbar' %>
<main>
<%= yield %>
</main>
</body>
</html>