html {
  height: 100%;
}

body {
  background: url(logo.png);
  background-size: 300px;
  background-repeat:   no-repeat;
  background-position: center center;  
  height: 25%;
  font-family: Arial, Helvetica, sans-serif;
}

h1 {
  color: white;
  text-align: center;
  font-size: 72px;
}