HTML (HyperText Markup Language) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content.
This widget uses a button as a trigger. When clicked, it toggles the visibility of the associated content area by adding/removing CSS classes that control its height and padding.
This is additional content that can be shown or hidden. The transition is smooth thanks to CSS transitions applied to the max-height property.
You can put any HTML content inside the details container: lists, images, forms, etc.