| <!-- | |
| Copyright 2021 The Chromium Authors | |
| Use of this source code is governed by a BSD-style license that can be | |
| found in the LICENSE file. | |
| --> | |
| <!DOCTYPE html> | |
| <script> | |
| class CustomInputElement extends HTMLElement { | |
| constructor() { | |
| super(); | |
| this.attachShadow({ mode: 'open' }).innerHTML = '<input>'; | |
| } | |
| } | |
| customElements.define('custom-input', CustomInputElement); | |
| </script> | |
| <custom-input></custom-input> |