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The HTML <details> element is used as a disclosure widget from which the user can retrieve additional information.

Content categories Flow content, sectioning root, interactive content, palpable content.
Permitted content One <summary> element followed by flow content.
Tag omission None, both the starting and ending tag are mandatory.
Permitted parent elements Any element that accepts flow content.
DOM interface HTMLDetailsElement

Attributes

This element includes the global attributes.

open
This Boolean attribute indicates whether the details will be shown to the user on page load. Default is false and so details will be hidden.

Example

<details>
  <summary>Some details</summary>
  <p>More info about the details.</p>
</details>

Live result

Note: If the live sample above doesn't work for you, see Browser compatibility to determine if your browser supports the feature at all.

Specifications

Specification Status Comment
WHATWG HTML Living Standard
The definition of '<details>' in that specification.		 Living Standard  
HTML5.1
The definition of '<details>' in that specification.		 Working Draft Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer MS Edge Opera Safari
Basic support 12 49.0 (49.0)[1] No support Under consideration 15 6
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 4.0 49.0 (49.0)[1] No support No support No support

[1] This feature is available since Firefox 47 behind the preference dom.details_element.enabled, defaulting to false, except on Nightly and Aurora versions (bug 1241750). Support for it is enabled by default, i.e. the preference is defaulting to true, since Firefox 49.0 (bug 1226455).

See also

Document Tags and Contributors

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 Last updated by: SphinxKnight,