.whatsapp-button {
	position: fixed;
	bottom: 15px;
	right: 15px;
	left: 15px;
	z-index: 99;
	background-color: #4fce5d;
	border-radius: 50px;
	color: #fff;
	text-decoration: none;
	width: 50px;
	height: 50px;
	font-size: 30px;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	-webkit-box-shadow: 0 0 25px -6px #000;
	-moz-box-shadow: 0 0 25px -6px #000;
	box-shadow: 0 0 25px -6px #000;
	animation: effect 5s infinite ease-in
}

@keyframes effect {

	100%,
	20% {
		width: 60px;
		height: 60px;
		font-size: 40px
	}

	0%,
	10% {
		width: 60px;
		height: 60px;
		font-size: 35px
	}

	5% {
		width: 50px;
		height: 50px;
		font-size: 30px
	}
}