body {
  background-image: url('stars4.gif');  
  color: white;                         
  text-shadow: 1px 1px 4px black;       
  display: flex;                        
  flex-direction: column;              
  align-items: center;                 
  justify-content: center;             
  height: 100vh;                       
  text-align: center; 
  font-family: 'Courier New', monospace;
}