CSS rainbow gradient loop animation

Question

Is trying to find a way to create CSS rainbow stripe animation loop... something similar to this:

Currently only able to create an image of the rainbow stripe but now sure how to create an animation that is continuous just like in the gif with CSS.

background: linear-gradient(-45deg, rgba(255,0,0,1) 0%, rgba(255,154,0,1) 10%, rgba(208,222,33,1) 20%, rgba(79,220,74,1) 30%, rgba(63,218,216,1) 40%, rgba(47,201,226,1) 50%, rgba(28,127,238,1) 60%, rgba(95,21,242,1) 70%, rgba(186,12,248,1) 80%, rgba(251,7,217,1) 90%, rgba(255,0,0,1) 100%);

The image:

Thanks for reading.

Answer 1

You can try like below:

html {
  min-height:100%;
  background: 
   linear-gradient(rgba(255,0,0,1) 0%, rgba(255,154,0,1) 10%, rgba(208,222,33,1) 20%, rgba(79,220,74,1) 30%, rgba(63,218,216,1) 40%, rgba(47,201,226,1) 50%, rgba(28,127,238,1) 60%, rgba(95,21,242,1) 70%, rgba(186,12,248,1) 80%, rgba(251,7,217,1) 90%, rgba(255,0,0,1) 100%) 
   0 0/100% 200%;
   animation: a 2s linear infinite;
}

@keyframes a {
  to {background-position:0 -200%}
}