<div class="wrap">
  		<a href="#" class="button">Hover Me!</a>
	</div>
body {
	background-image: url(http://p1.pichost.me/i/11/1344899.jpg);
	background-size: cover;
	background-repeat: no-repeat;
   font-family: Arial, sans-serif;
	font-weight: bold;
	font-size: 14px;
}

.wrap {
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -86px;
	margin-left: -89px;
	text-align: center;
}

a {
	transition: 0.3s all;

	display: block;
	margin: 20px auto;
	max-width: 180px;
	text-decoration: none;
	border-radius: 4px;
	padding: 20px 30px;
  border: 1px solid rgba(30, 22, 54, 0.7);
}

a.button {
	color: rgba(30, 22, 54, 0.6);
}

a.button:hover {
	color: rgba(255, 255, 255, 0.85);
  background: rgba(30, 22, 54, 0.7);
}



External CSS

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