HTML | <details> open Attribute

The HTML <details> open attribute is used to indicate whether the details will be display on page load. It is a boolean attribute. If this attribute is present then the detail will be visible. 

Syntax:

<details open> Contents... </details>

Example: This example illustrates the use of open attribute in <details> element. 

Output:

 👁 Image
 

Supported Browsers: The browser supported by HTML <details> open attribute are listed below:

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