body {
  background: #ff0137;
}

.rainbow .wave-1 {
  background: #ff84bd;
}

.rainbow .wave-2 {
  background: #ffad31;
}

.rainbow .wave-3 {
  background: #ffd684;
}

.rainbow .wave-4 {
  background: #5abd7b;
}

.rainbow .wave-5 {
  background: #7bceff;
}

.rainbow .wave-6 {
  background: #9c42a5;
  
}

.nyan-cat {
    margin-top: -25px;
}