*{
	margin: 0;
	padding: 0;
	border: none;
	outline: none;
}

body{
	background: #efefef;
	margin-top: 100px;
}

@keyframes animButton{
	from{
		margin-top: 0;
		box-shadow: 0 4px 4px #333;
	}
	to{
		margin-top: -6px;
		box-shadow: 0 10px 10px #bbb;
	}
}

input{
	display: block;
	margin: auto;
	width: 300px;
	height: 50px;
	background: #3498db;
	color: #fff;
	font-size: 18px;
	border-bottom: 5px solid #2980b9;
	border-radius: 9px;
	cursor: pointer;
	animation: animButton .6s alternate linear infinite;
}

input:hover{
	background: #3babf6;
}