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Accordion
This lesson is part of How To · All levels
Summary
This lesson reviews the creation of the Accordion components (open-close folding panels) using HTML, CSS, and JavaScript. Accordion is very effective at saving screen space on FAQ list pages or tiered documentation by displaying text content only when the panel title is clicked.
Key points
- Accordion hides content by default (display: none or maxHeight: 0)
- Event listener click is added to each button of the accordion to toggle visibility panel
- Support for smooth slide animation using the max-height and scrollHeight properties
- Provide visual indicators such as plus (+) and minus (-) signs for open-close status
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