- From Modal Windows for CC data to React, Angular, Vue and Python Library Helpers =========
The #overlay element creates a semi-transparent background that dims the rest of the page. The .modal element is the actual modal window.
We use display: none to hide the overlay initially. display: flex is used when showing the modal to center it on the screen.
Event Listeners: These handle interactions like opening/closing the modal. Overlay Click: Clicking outside the modal (on the overlay) closes it.