html { 
  background: url(graveyard.jpg) no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

.kros1{color: black;
font-size: 300px;
margin-top: 22%;
margin-left:30% 
}

.kros2{color: black;
font-size: 120px;
margin-top: 0%;
margin-left:0% 
}