body {
	font-size:14px;
	padding: 15px 20px;
}
.box {
	width: 350px;
	margin: 0 auto;
}

.animate-fading {
	height: 72px;
	line-height: 72px;
	background: #E41931;
	border-radius: 20px;
	font-weight: bold;
	font-size: 22px;
	padding: 20px;
	text-align: center;
	color: #FFFFFF;
	animation: animate_fading 2s infinite;
	animation-timing-function: linear;
}
.animate-fading:hover {
	animation: none;
}

@keyframes animate_fading {
	0% {
		opacity: 1;
	}
	25% {
		opacity: 0.6;
	}
	50% {
		opacity: 0.1;
	}
	75% {
		opacity: 0.6;
	}
	100% {
		opacity: 1;
	}
}