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HTML <details> tag

The HTML <details> element specifies additional details that the user can view or hide on click.

The <summary> element is used to specify a visible heading for the details. The heading can be clicked to view/hide the details.

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Browser compatibility

The numbers in the table specify the first browser version that fully supports the <details> element:

Element
<details> 12 49 15 6 not supported



Attributes

The following table shows the attributes that are specific to the <details> tag:

Attribute Description
open indicates whether or not the details - that is, the contents of the <details> element should be visible by default

Global Attributes

The <details> tag supports the global attributes described in HTML Global Attributes Reference

Event Attributes

The <details> tag supports the event attributes described in HTML Events Reference


More Examples

The following example specifies that the contents of the <details> element should be visible by default:

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Last updated: Friday 21 Sep, 2018