<button commandfor="only-html" command="show-modal">Open a modal (only HTML)</button>
<dialog id="only-html">
    <p>Hello 👋. Nice to meet you!</p>
    <p><i><b>(Opened with only HTML)</b></i></p>
    <form method="dialog">
        <button>Close</button>
    </form>
</dialog>

Open a modal (only HTML) Open a modal (with JS) Open a dialog (with JS, because no invokers for simple dialogs) Open a modal with customized backdrop Open a modal like a drawer