.button--loading::after {
	content: "";
	position: absolute;
	width: 16px;
	height: 16px;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	margin: auto;
	border: 4px solid transparent;
	border-top-color: #57bfc7;
	border-radius: 50%;
	animation: button-loading-spinner 1s ease infinite;
}

@keyframes button-loading-spinner {
	from {
		transform: rotate(0turn);
	}

	to {
		transform: rotate(1turn);
	}
}