My goal is to stack multiple background images within a single div container while ensuring their position is relative to the screen height. The problem I'm encountering is my inability to modify CSS values separated by commas. Here is my logical approach to achieving this:
jQuery(document).ready(function() {
windowHeight = window.innerHeight;
jQuery("#home-bg.bg-1").css('background-position-y', '0, ' + windowHeight);
});