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  <h2>Using <code>Element.replaceWith()</code></h2>
  <p>The <code>Element.replaceWith()</code> method can be used to replace a DOM node with a new set of DOM nodes or a DOM string. Use the two buttons below to demonstrate each type of replacement.</p>

  <p><em>This</em> paragraph will be replaced by the one below or the string entered into the input.</p>

  <p><strong>This is a paragraph with strong tags nested inside.</strong></p>
  <div><button>Replace with Element</button></div>

  <div><input type="text" placeholder="Enter some text"> <button>Replace with Input String</button></div>



                body {
  font-family: Arial, sans-serif;
  font-size: 20px;
  padding: 0 20px;

main {
  text-align: center;
  margin: 0 auto;
  max-width: 800px;

div {
  margin-bottom: 16px;

p {
  text-align: left;
  padding: 0 20px;

code {
  color: firebrick;


                let p1 = document.querySelectorAll('p')[1],
    p2 = document.querySelectorAll('p')[2],
    input = document.querySelector('input'),
    btn = document.querySelector('button'),
    btn2 = document.querySelectorAll('button')[1];

btn.addEventListener('click', function () {
  this.disabled = true;
}, false);

btn2.addEventListener('click', function () {
  this.disabled = true;
}, false);