.rainbow{
    background-image:
    linear-gradient(to right top, purple, rgb(90, 7, 150),rgb(17, 17, 235),
      rgb(38, 161, 38),rgb(197, 197, 17),rgb(255, 166, 0),red);
  }

.funanimal{
    background-image: url('https://i.postimg.cc/J7ckk3Dk/funanimal.jpg');
}