Rotating gradient button

<div class="bg-red-500 z-10 rounded-full p-0.5 relative overflow-hidden">
  <span class="bg-gradient-to-t rounded-full animate-spin from-violet-500 to-yellow-300 absolute -top-3/4 -left-1/4 h-40 w-40 aspect-square z-20"></span>

  <button class="font-semibold relative z-30 bg-slate-800 text-gray-300 py-3 px-6 rounded-full">Click me</button>
</div>