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HTML <details> open Attribute

HTML details Tag Reference HTML <details> tag

Example

An open/visible <details> element:

<details open>
<summary>Copyright 1999-2014.</summary>
<p> - by Refsnes Data. All Rights Reserved.</p>
<p>All content and graphics on this web site are the property of the company Refsnes Data.</p>
</details>

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Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The open attribute is currently only supported in Opera, Chrome, and Safari 6.


Definition and Usage

The open attribute is a boolean attribute.

When present, it specifies that the details should be visible (open) to the user.


Differences Between HTML 4.01 and HTML5

The <details> tag is new in HTML5.


Differences Between HTML and XHTML

In XHTML, attribute minimization is forbidden, and the open attribute must be defined as <details open="open">.


Syntax

<details open>


HTML details Tag Reference HTML <details> tag

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