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Thursday, May 9, 2019

HTML iframe Tag

Example

An inline frame is marked up as follows:
<iframesrc="https://www.w3schools.com"></iframe>
Try it Yourself »

Definition and Usage

The <iframe> tag specifies an inline frame.
An inline frame is used to embed another document within the current HTML document.

Browser Support

Element
<iframe>YesYesYesYesYes

Tips and Notes

Tip: To deal with browsers that do not support <iframe>, add a text between the opening <iframe> tag and the closing </iframe> tag.
Tip: Use CSS to style the <iframe> (even to include scrollbars).

Differences Between HTML 4.01 and HTML5

HTML5 has added some new attributes, and several HTML 4.01 attributes are removed from HTML5.

Differences Between HTML and XHTML

In XHTML, the name attribute is deprecated, and will be removed. Use the global id attributeinstead.


Attributes

= New in HTML5.
AttributeValueDescription
alignleft
right
top
middle
bottom
Not supported in HTML5.
Specifies the alignment of an <iframe> according to surrounding elements
frameborder1
0
Not supported in HTML5.
Specifies whether or not to display a border around an <iframe>
heightpixelsSpecifies the height of an <iframe>
longdescURLNot supported in HTML5.
Specifies a page that contains a long description of the content of an <iframe>
marginheightpixelsNot supported in HTML5.
Specifies the top and bottom margins of the content of an <iframe>
marginwidthpixelsNot supported in HTML5.
Specifies the left and right margins of the content of an <iframe>
nametextSpecifies the name of an <iframe>
sandboxallow-forms
allow-pointer-lock
allow-popups
allow-same-origin
allow-scripts
allow-top-navigation
Enables an extra set of restrictions for the content in an <iframe>
scrollingyes
no
auto
Not supported in HTML5.
Specifies whether or not to display scrollbars in an <iframe>
srcURLSpecifies the address of the document to embed in the <iframe>
srcdocHTML_codeSpecifies the HTML content of the page to show in the <iframe>
widthpixelsSpecifies the width of an <iframe>

Global Attributes

The <iframe> tag also supports the Global Attributes in HTML.

Event Attributes

The <iframe> tag also supports the Event Attributes in HTML.

Related Pages

HTML tutorial: HTML Iframes
HTML DOM reference: IFrame Object

Default CSS Settings

Most browsers will display the <iframe> element with the following default values:
iframe:focus { 
  outline: none;
}

iframe[seamless] { 
  display: block;
}

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