HTML Tags - IFrame Tag

What is an HTML <iframe> tag ?

HTML iframe is used to display a web page within a web page.

Its also called as nested webpage display process.

HTML <iframe> tag specifies an inline frame.

Why we use HTML <iframe> tag ?

HTML iframes are used to embed another document within the current HTML document.

Both web page content and iframe contents can interact with each other using JavaScript.

How HTML <iframe> tag works ?

When <iframe> tag is declared with “src” attribute, A rectangular within the document is opened and source URL is loaded inside the iframe.

The iframe window will be treated as the new HTML document by the browser with scrollbars and borders.

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Syntax :

<iframe src="sourceURL"></iframe>

1. Simple HTML Iframe

Example :

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook"></iframe>
        </body>

</html>

Output :

2. IFrame with Width and Height

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook" height="300px" width="300px"></iframe>
        </body>

</html>

Output :

3. IFrame Width and Height in percentage.

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook" height="30%" width="30%"></iframe>
        </body>

</html>

Output :

4. IFrame Width and Height modified using CSS property.

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook" style="height:300px;width:300px"></iframe>
        </body>

</html>

Output :

5. IFrame without border

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook" style="border:none;height:300px;width:300px"></iframe>
        </body>

</html>

Output :

6. IFrame with border

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="https://s30.e0b.myftpupload.com/" title="cstechbook" style="border:2px solid orange;height:300px;width:300px"></iframe>
        </body>

</html>

Output :

7. IFrame with Target link.

Example :

<!DOCTYPE html>
<html>
        <head>
                <title>IFrame</title>
        </head>
        <body>
                <p>Simple IFrame Example</p>
                <iframe src="text.html" title="google" name="cstechbook" style="border:2px solid orange;height:300px;width:300px"></iframe>
                <p><a href="https://s30.e0b.myftpupload.com/" target="cstechbook">CSTechbook.com</a></p>
        </body>

</html>

Output :

This image has an empty alt attribute; its file name is html-23-example7-cc.png

<iframe> Tag Attributes

HTML <iframe> tag support following specific attributes.

Sno	Attributes	Value	Description
1	height	pixels	Specify the height of the inline frame.
2	name	text	Specify the name of the inline frame.
3	sandbox	allow-forms allow-pointer-lock allow-popups allow-same-origin allow-scripts allow-top-navigation	This attribute enable extra restrictions on the content that can appear in the inline frame. allow-forms Its allows to embedded browsing context to submit forms. allow-pointer-lock Its allows to embedded browsing context to use Pointer Lock API. allow-popups Its allows popups window. allow-same-origin Its allows to embedded content consider as normal origin instead of unique origin. allow-scripts Its allows to embedded browsing context to execute scripts. allow-top-navigation Its allows to embedded browsing context load content to the top level browsing context.
4	src	url	Specify the URL of the page to embed on the inline frame.
5	width	pixels	Specify the width of the inline frame.
6	Following attributes has been removed in HTML5.
7	align	left right top middle bottom	Specify the alignment of an iframe.
8	frameborder	1 0	Specify that border should be display or not.
9	longdesc	URL	Specify a page (that contains a long description) of the content of an iframe.
10	marginheight	pixels	Specify the top and bottom margins of an iframe.
11	marginwidth	pixels	Specify the left and right margins of an iframe.
12	scrolling	auto yes no	Specify that scrollbars should be display or not.
13	allowfullscreen	allowfullscreen	Specify that iframe content allow to use on full screen.

Global Attributes

HTML <iframe> 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 <iframe> 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