<!--
Copyright 2023 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<html>
<head>
<style>
#button {
width: 200px;
height: 200px;
}
</style>
</head>
<body>
<main>
<div>This is some content</div>
<button id="button">Click me!</button>
</main>
<script>
const button = document.getElementById("button");
let first = true;
button.addEventListener("click", e => {
history.back();
const content = document.createElement("div");
content.innerHTML = "This is some more content";
document.getElementsByTagName("main")[0].insertBefore(content, button);
});
</script>
</body>
</html>