body {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 288px;
  color: #f90;
  background: #000;
  text-align: center;  
}

#taudiv {
  position:absolute;
  top: 50%;
  left: 50%;
  margin-top:-100px;
  margin-left:-100px;
  width:200px;
  height:200px;
}