HTML Tags – Dialog Tag

What is HTML <dialog> tag ?

HTML <dialog> tag defines a dialog box or sub-window or popup window.

HTML <dialog> tag represents a dialog box or other interactive component like window.

HTML <dialog> tag introduce in HTML5. But now this tag has been removed from the HTML5 specification.

Why HTML <dialog> tag is used ?

HTML <dialog> element makes it easy to create popup dialogs and modals on a web page.

HTML <dialog> tag is used to create a new popup dialog on a web page.

How HTML <dialog> tag works ?

HTML <dialog> element uses a boolean attribute called open that activate element and facilitate user to interact with it.

HTML <dialog> element is used to create a dialog box such as a popup or modal window that is rendered within the active browser window.

HTML <dialog> element behaviour can be implemented using JavaScript.

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Syntax :

<dialog open>
  <p>Some Paragraph text</p>
</dialog>

1. Simple Dialog box

Example :

<!DOCTYPE html>
<html>
<head>
  <title>HTML dialog tag</title>
</head>
<body>
  <dialog open>
  <p>Computer Science & Engineering (CSE) is an academic program at many universities which comprises scientific and engineering aspects of computing.</p>
  <p>CSE is also a term often used in Europe to translate the name of engineering informatics academic programs.</p>
  </dialog>
</body>
</html>

Output :

2. Dialog Tag with Javascript

Example :

<!DOCTYPE html>
<html>
<head>
        <title>HTML dialog tag</title>
</head>
<body>

        <div>
                <p>Dr.APJ Abdul Kalam Quotes to Dream and Innovate in Life</p>
                <dialog id="dialogTest" style="width:50%;background-color:#f8e4b6;border:1px dotted black;">
                <p><q>The best brains of the nation may be found on the last benches of the classroom.
                </q> - <cite>Dr.APJ Abdul Kalam</cite></p>
                <button id="hide">Close</button>
                </dialog>
                <button id="show">Show Quote</button>
        </div>

        <!-- JavaScript to provide the "Show/Close" functionality -->
        <script type="text/JavaScript">
                (function() {
                        var dialog = document.getElementById('dialogTest');
                        document.getElementById('show').onclick = function() {
                                dialog.show();
                        };
                        document.getElementById('hide').onclick = function() {
                                dialog.close();
                        };
                })();
        </script>

</body>
</html>

Output :

<dialog> Tag Attributes

HTML <dialog> tag support following specific attributes.

Sno	Attributes	Value	Description
1	open	open	Specifies that dialog box is active and user can interact with it.

Global Attributes

HTML <dialog> tag support following global attributes.

Sno	Attributes	Value	Description
1	id	unique_name	Declared unique id for an element.
2	class	class_name	Declared one or more classnames for an element.
3	style	styles	CSS inline styles specify an element.
4	title	title	Specify extra details of element contain, this will display as a “tooltip” for an elements.

Event Attributes

HTML <dialog> tag support following event attributes.

Sno	Attributes	Value	Description
1	onfocus	script	element gets focus on object when script tobe run.
2	onblur	script	element lose the focus on object when scrip tobe run.
3	onabort	script	element gets aborted on object when script tobe run.
4	onchange	script	element gets anytime change on object when script tobe run.
5	onbeforeunload	script	element gets unloaded on object when scrip tobe run.
6	onclick	script	clicked on object when script tobe run.
7	ondblclick	script	double click on object when script tobe run.
8	onkeydown	script	key is pressed when script tobe run.
9	onkeypress	script	key is pressed over element then released when script tobe run.
10	onkeyup	script	key is released over element when script tobe run.
11	onmousedown	script	mouse button was pressed over an element when script tobe run.
12	onmouseout	script	mouse pointer release over an element when script tobe run.
13	onmousemove	script	run mouse pointer moved when script tobe run.
14	onmouseover	script	run mouse pointer move over when script tobe run.
15	onmouseup	script	mouse button is released when script tobe run.
16	onreset	script	form has been reset when script tobe run.
17	onselect	script	Select some content when script tobe run.
18	onsubmit	script	form has been submitted when script tobe run.
19	onload	script	object has load when script tobe run.
20	onchange	script	allow to change the object when script tobe run.
21	onunload	script	unload to the browser window when script tobe run.
22	ondrag	script	element being dragged when script tobe run.
23	ondragend	script	element being stop dragged when script tobe run.
24	ondragenter	script	element being go target dragged when script tobe run.
25	ondragleave	script	element being leave to target dragged when script tobe run.
26	ondragover	script	element being over to target dragged when script tobe run.
27	ondragstart	script	element being start dragged when script tobe run.
28	ondrop	script	element being dropped when script tobe run.
29	onerror	script	element error occurs when script tobe run.
30	onmessage	script	element message display when script tobe run.
31	onerror	script	element error occurs when script tobe run.
32	onmousewheel	script	mouse wheel will be rotate when script tobe run.
33	onscroll	script	scrollbar is scroll when script tobe run.
34	onresize	script	element should be resize when script tobe run.
35	onselect	script	all element content selected when script tobe run.
36	onstorage	script	element should be store in target when script tobe run.

Browser Compatibility

Sno	Browser	Support
1	Chrome	Yes
2	Firefox	Yes
3	Edge	Yes
4	Opera	Yes
5	Safari	Yes
6	Internet Explorer	Yes