.page-loading {
	width: 100px;
	height: 100px;
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}
.page-loading > i {
	background-color: #333;
	height: 100%;
	width: 6px;
	display: inline-block;
	margin: 0 3px;

	-webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
	animation: sk-stretchdelay 1.2s infinite ease-in-out;
}

.page-loading > i:nth-child(2) {
	-webkit-animation-delay: -1.1s;
	animation-delay: -1.1s;
}

.page-loading > i:nth-child(3) {
	-webkit-animation-delay: -1.0s;
	animation-delay: -1.0s;
}

.page-loading > i:nth-child(4) {
	-webkit-animation-delay: -0.9s;
	animation-delay: -0.9s;
}

.page-loading > i:nth-child(5) {
	-webkit-animation-delay: -0.8s;
	animation-delay: -0.8s;
}

@-webkit-keyframes sk-stretchdelay {
	0%, 40%, 100% {
		-webkit-transform: scaleY(0.3)
	}
	20% {
		-webkit-transform: scaleY(1.0)
	}
}

@keyframes sk-stretchdelay {
	0%, 40%, 100% {
		transform: scaleY(0.3);
		-webkit-transform: scaleY(0.3);
	}
	20% {
		transform: scaleY(1.0);
		-webkit-transform: scaleY(1.0);
	}
}