JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d"></div>

JavaScript

setInterval(function() {
  var inner_w = window.innerWidth;
  var inner_h = window.innerHeight;
  var client_w = document.documentElement.clientWidth;
  var client_h = document.documentElement.clientHeight;
  var debug_msg = "inner: " + inner_w + "-" + inner_h + "<br>client: " + client_w + "-" + client_h;
  document.getElementById("d").innerHTML = debug_msg;
  document.title = debug_msg;
  document.body.style.background = (client_w === inner_w && client_h === inner_h ? "green" : "red");
}, 60);