#hideMess-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: black; /* Solid black screen */
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.25s ease-out; /* Fade-out effect */
}

/* Prevent scrolling while the overlay is active */
body.hideMess-loading {
    overflow: hidden;
}
@media (max-width: 768px) {
	#hideMess-overlay {
		display: none;
	}
}