.btn-inner {
	display: block;
	-webkit-transform: translateY(0);
	transform: translateY(0);
	-webkit-transition: 250ms cubic-bezier(0.6, 0.15, 0.4, 0.85);
	transition: 250ms cubic-bezier(0.6, 0.15, 0.4, 0.85);
}

.btn-inner-pending {
	bottom: 0;
	left: 0;
	line-height: 2.3;
	position: absolute;
	right: 0;
	text-align: center;
	top: 0;
	-webkit-transform: translateY(-2em);
	transform: translateY(-2em);
	-webkit-transition: 250ms cubic-bezier(0.6, 0.15, 0.4, 0.85);
	transition: 250ms cubic-bezier(0.6, 0.15, 0.4, 0.85);
}

.btn-xs .btn-inner-pending {
	line-height: 1.5;
}

.btn {
	overflow: hidden;
	position: relative;
}

.btn.is-pending {
	-webkit-animation: none;
	animation: none;
}

.btn.is-pending .btn-inner {
	-webkit-transform: translateY(2em);
	transform: translateY(2em);
}

.btn.is-pending .btn-inner-pending {
	-webkit-animation: pulse 750ms cubic-bezier(0.6, 0.15, 0.4, 0.85) 250ms infinite alternate;
	animation: pulse 750ms cubic-bezier(0.6, 0.15, 0.4, 0.85) 250ms infinite alternate;
	-webkit-transform: translateY(0);
	transform: translateY(0);
}

@-webkit-keyframes pulse {
	from {
		opacity: 1;
	}
	to {
		opacity: 0.25;
	}
}

@keyframes pulse {
	from {
		opacity: 1;
	}
	to {
		opacity: 0.25;
	}
}