HTML (HyperText Markup Language) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
Expand/collapse widgets are useful for managing content space and improving user experience, especially on pages with a lot of information. They allow users to selectively view details, reducing visual clutter.
Common uses include FAQs, detailed product descriptions, settings panels, or long forms where only relevant sections are needed at a time.
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