big { color:white;
    font-weight:800;}
.rainbow {
  margin-top: 0px;
  margin-bottom: 50px;
  text-align: center;
  font-family: sans-serif;
  font-size: 5rem;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  color: #fff;
  text-shadow: -4px 4px #ef3550,
               -8px 8px #f48fb1,
               -12px 12px #7e57c2,
               -16px 16px #2196f3,
               -20px 20px #26c6da,
               -24px 24px #43a047,
               -28px 28px #eeff41,
               -32px 32px #f9a825,
               -36px 36px #ff5722;
}
body { 
  font-family: sans-serif;  
  display:flex; 
  flex-flow: column; 
  align-items:stretch; padding:2rem 0rem; 
  background:url(x69n3.png);
}
img { width: 60%; max-width: 600px; margin: auto; }
big, h1, h2 { margin-top:0; margin-bottom:0; text-align:center; }
h1 { 
  
  background-size:cover;
  padding:1rem;
}