JSFiddle - React, Tailwind, and code Playground

CSS

body {
  -webkit-animation: bg 1s infinite; /* Safari 4+ */
  -moz-animation:    bg 1s infinite; /* Fx 5+ */
  -o-animation:      bg 1s infinite; /* Opera 12+ */
  animation:         bg 1s infinite; /* IE 10+, Fx 29+ */
}

@keyframes bg {
  0% {
    background: #000;
  }
  20% {
    background: red;
  }
  40% {
    background: lime;
  }
  
  80% {
    background: blue;
  }
  
  100% {
    background: orangered;
  }
}