body {
    background-color: #000000; 
    text-align: center;
}

#outer {height: 100px; overflow: hidden; position: relative;}
#outer[id] {display: table; position: static;}
#middle {position: absolute; top: 30%;} /* for explorer only*/
#middle[id] {display: table-cell; vertical-align: middle; width: 100%;}
#inner {position: relative; top: -50%} /* for explorer only */
#inner[id] {position: static;}