.green {border:1px solid green;}
html {height: 100%;}
body {background-color: #000000; height:100%;}
div {color: #555555; font-family: arial, sans-serif; text-align:center;}
.outer {display: table; height: 100%; width:100%; _position: relative; overflow: hidden;}
.middle {_position: absolute; _top: 50%; display: table-cell; vertical-align: middle;}
.inner {position: relative; _top: -50%; _left: -50%;}