JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <label for="name">Name</label>
    <input name="name"/>
    <br />
    <label for="email">Email</label>
    <input type="email" name="email"/>
</form>
<div id="target">
    <span id="nameEcho"></span>
    <br />
    <span id="emailEcho"></span>
</div>

JavaScript

var nameInput = document.getElementsByName('name')[0];
var emailInput = document.getElementsByName('email')[0];
var nameTarget = document.getElementById('nameEcho');
var emailTarget = document.getElementById('emailEcho');

nameInput.addEventListener('keypress', function() {
    nameTarget.textContent = nameInput.value;
});

emailInput.addEventListener('keyup', function() {
    emailTarget.textContent = emailInput.value;
});