themes-wordpress/affinity/assets/stylesheets/shared/_infinitescroll.scss

/* Globally hidden elements when Infinite Scroll is supported and in use. */
.infinite-scroll .posts-navigation, /* Older / Newer Posts Navigation (always hidden) */
.infinite-scroll.neverending .site-footer { /* Theme Footer (when set to scrolling) */
	display: none;
}

/* When Infinite Scroll has reached its end we need to re-display elements that were hidden (via .neverending) before. */
.infinity-end.neverending .site-footer {
	display: block;
}

#infinite-handle {
	margin: 0 0 3.2em;
}

#infinite-handle span {
	@extend button;

	display: inline-block;
	-webkit-appearance: inherit;
	margin: 0 auto;
	left: 50%;
	transform: translateX(-50%);

	button {
		border: 0;
		outline: 0;
	}
}

.infinite-loader {
	margin-bottom: 3.2em;
}
.infinite-loader .spinner {
	margin: 0 auto;
	left: 50%;
	transform: translateX(-50%);
}