html,body{height:100%}body{background-color:#fff;color:#666;text-align:center;font-family:"Open Sans", arial, sans-serif;font-size:24px;margin:0}h1{color:black;font-size:2em;line-height:1.5em}.main{height:100%;width:100%;display:table;max-width:640px;margin:0 auto}.wrapper{display:table-cell;height:100%;vertical-align:middle;padding:1em}