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Defines a toggable block of content with a summary and additional details.
Example: Copy
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec viverra nec nulla vitae mollis.
<details>
<summary>Read more</summary>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec viverra nec nulla vitae mollis.</p>
</details>
open
Defines whether the additional details are shown by default or not
"true"
The additional details are visible by default.