body {
  background:#434343;
}

.rainbow .wave-1 {
  background: #d62942;
}

.rainbow .wave-2 {
  background: #d66b29;
}

.rainbow .wave-3 {
  background: #d6b529;
}

.rainbow .wave-4 {
  background: #73d629;
}

.rainbow .wave-5 {
  background: #29adce;
}

.rainbow .wave-6 {
  background: #5a52de;
}

.nyan-cat {
  top: 63%;  
}