JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d1">_</div>
<br><hr>
  <div id="d2"><input id="i1" type="text" /></div>

JavaScript

var d1 = document.getElementById("d1");
window.onkeypress = function(ev){
  d1.innerHTML = "keyCode: " + ev.keyCode;
};
var d2 = document.getElementById("d2");
var i1 = document.getElementById("i1");
d2.onkeypress = function(ev){
  d1.innerHTML = "blocked";
  ev.stopPropagation();
};