Bulma is a pure CSS framework and does not provide JavaScript. That being said, how would I go about adding JavaScript to prevent the modal component (specifically the card variant) from being closed if a user clicks outside of the modal or preventing it from closing if they hit ESC
on their keyboard?
In the example, they probably coded that behaviour. Bulma does not include it. To activate the modal, just add the is-active modifier on the .modal container. As long as you don't remove the is-active modifier yourself, the modal will stay open.