html, body{
  height: 100%;
}

body {
  background: #000;
}

.logo {
	width: 400px;
}

.center {
   width: 700px;
   height: 500px;
   position: absolute;
   left: 50%;
   top: 50%;
   margin-left: -350px;
   margin-top: -200px;
   text-align:center;
}

address {
   font-family:"Ubuntu", Arial, sans-serif;
   font-size:14px;
   color:#eee;
   font-weight: 400;
   font-style: normal;
   letter-spacing: 1px;	
}

@media only screen and (max-width: 768px) {
    .center {
	    width:500px;
	    margin-left:-250px;
    }
    .logo {
	width: 260px;
	}
	address {
		font-size: 15px;
	}
}