body
{
  background-image:
    radial-gradient(at   0%   0%, hsla(350, 60%, 50%, 75%) 0%, transparent 60%),
    radial-gradient(at   0% 100%, hsla( 10, 30%, 50%, 75%) 0%, transparent 60%),
    radial-gradient(at 100% 100%, hsla(  0, 50%, 50%, 75%) 0%, transparent 60%),
    radial-gradient(at 100%   0%, hsla(340, 40%, 50%, 75%) 0%, transparent 60%),
    linear-gradient(0deg, hsl(330, 20%, 15%), hsl(300, 20%, 40%));
  background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
}