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/HTML

<dialog>

The <dialog> represents a dialog box or other interactive component, such as a dismissable alert, inspector, or subwindow.

Content categories Flow content, sectioning root
Permitted content Flow content
Tag omission None, both the starting and ending tag are mandatory.
Permitted parents Any element that accepts flow content
Implicit ARIA role dialog
Permitted ARIA roles alertdialog
DOM interface HTMLDialogElement

Attributes

This element includes the global attributes.

The tabindex attribute must not be used on the <dialog> element.

open
Indicates that the dialog is active and can be interacted with. When the open attribute is not set, the dialog shouldn't be shown to the user.

Usage notes

  • <form> elements can close a dialog if they have the attribute method="dialog". When such a form is submitted, the dialog closes with its returnValue property set to the value of the button that was used to submit the form.
  • The ::backdrop CSS pseudo-element can be used to style behind a <dialog> element when the dialog is displayed with HTMLDialogElement.showModal(). For example, to dim unreachable content behind the modal dialog.

Examples

Simple example

<dialog open>
  <p>Greetings, one and all!</p>
</dialog>

Advanced example

This example opens a pop-up dialog box that contains a form, when the "Update details" button is clicked.

HTML

<!-- Simple pop-up dialog box containing a form -->
<dialog id="favDialog">
  <form method="dialog">
    <p><label>Favorite animal:
      <select>
        <option></option>
        <option>Brine shrimp</option>
        <option>Red panda</option>
        <option>Spider monkey</option>
      </select>
    </label></p>
    <menu>
      <button value="cancel">Cancel</button>
      <button id="confirmBtn" value="default">Confirm</button>
    </menu>
  </form>
</dialog>

<menu>
  <button id="updateDetails">Update details</button>
</menu>

<output aria-live="polite"></output>

JavaScript

var updateButton = document.getElementById('updateDetails');
var favDialog = document.getElementById('favDialog');
var outputBox = document.querySelector('output');
var selectEl = document.querySelector('select');
var confirmBtn = document.getElementById('confirmBtn');

// "Update details" button opens the <dialog> modally
updateButton.addEventListener('click', function onOpen() {
  if (typeof favDialog.showModal === "function") {
    favDialog.showModal();
  } else {
    alert("The <dialog> API is not supported by this browser");
  }
});
// "Favorite animal" input sets the value of the submit button
selectEl.addEventListener('change', function onSelect(e) {
  confirmBtn.value = selectEl.value;
});
// "Confirm" button of form triggers "close" on dialog because of [method="dialog"]
favDialog.addEventListener('close', function onClose() {
  outputBox.value = favDialog.returnValue + " button clicked - " + (new Date()).toString();
});

Result

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
dialog 37 79 53
Disabled
53
Disabled
See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No 24 No
open 37 79 53
Disabled
53
Disabled
See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No 24 No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
dialog 37 37 53
Disabled
53
Disabled
See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
24 No 3.0
open 37 37 53
Disabled
53
Disabled
See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
24 No 3.0

Polyfill

Include this polyfill to provide support for browsers without <dialog> element.

dialog-polyfill

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog