HTML <details> open attribute

HTML <details> Tag

Definition and Usage

open The attribute is a boolean attribute.

If this attribute is set, it specifies that the details should be visible to the user (open).

Example

An open/visible <details> element:

<details open>
  <summary>Future World Center (Epcot Center)</summary>
  <p>Epcot is a theme park in Walt Disney World Resort, featuring exciting attractions, international pavilions, award-winning fireworks, and seasonal events.</p>
</details>

Try It Yourself

Syntax

<details open>

Browser Support

The numbers in the table indicate the first browser version to fully support this attribute.

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
12.0 79.0 49.0 6.0 15.0

HTML <details> Tag