.button {
	position: relative;
	overflow: hidden;
	transition: background 400ms;
\n\n	cursor: pointer;
}

span.ripple {
	position: absolute;
	border-radius: 50%;
	transform: scale(0);
	animation: ripple 600ms linear;
	background-color: rgba(255, 255, 255, 0.7);
}

@keyframes ripple {
	to {
		transform: scale(4);
		opacity: 0;
	}
}