HTML <details> open Attribute
An open/visible <details> element:
<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>
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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">.
HTML <details> tag
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