body {
  background-image: url('bg.php');
  background-color: #00001f;
  background-repeat: no-repeat;
  background-position:center; 
  color: #fff;
  font-family: Tahoma, serif;
  font-size: 90%;
  font-weight: bold;
  margin:0 auto;
  padding: 0;
  height: 100%;
  text-align: center; }

  body .container {
    font-size: 100%;
    padding: 2em;
    width: 32em;
    margin: 0 auto;
    text-align: left;
    position: absolute;
    top: 50%;
    left: 50%; }
    }