The form does not need JS. There are two labels black and red "Requires JS". The black one should've been "May Require JS". It is use for the "custom controls" provided by UIkit. But it is not required.
Cover, leader, dropdowns and even modals, you can always use the CSS class instead of UIkit custom attributes and toggle it manually via server.
Cover, leader, dropdowns and even modals, you can always use the CSS class instead of UIkit custom attributes and toggle it manually via server.