JSFiddle - React, Tailwind, and code Playground

HTML

<dialog open>
  <p>Greetings, one and all!</p>
  <button>Ok</button><button>Maybe</button><button>Cancel</button>
</dialog>

JavaScript

document.querySelectorAll('button').forEach($button => 
  $button.onclick = () => document.querySelector('dialog').removeAttribute('open'))