This is a button built with TailwindCSS - https://tailwindcss.com/docs/installation

<a 
class="inline-flex items-center px-4 py-2 mt-2 font-semibold tracking-tighter text-white transition duration-500 ease-in-out transform bg-transparent border rounded-lg text-md md:mt-0 hover:text-black hover:bg-white focus:shadow-outline" 
href="/"
>
  <div class="flex text-lg tracking-tighter">
    <span class="justify-center">Button</span>
  </div>
</a>