Bootstrap 5 Collapse Panels: Space-Saving Content Expansion/Collapse

This article introduces the usage of Bootstrap 5 collapse panels. Collapse panels are interactive components that hide content to save space on web pages, commonly used in scenarios like FAQs. Bootstrap 5 enables this without complex JavaScript, achievable through HTML class names and data attributes, supporting effects like accordions. To use, first include Bootstrap 5 CSS and JS (CSS first, then JS). A basic panel includes a trigger button (`data-bs-toggle="collapse"` + `data-bs-target="#xxx"`) and collapsible content (`class="collapse"`, with the `show` class for default expansion). For accordion effect, specify the parent container via `data-bs-parent`, ensuring only one panel expands at a time. Custom styling can be done by modifying class names, such as button colors or adding icons. The core lies in `data-bs-target` for ID association, `data-bs-parent` for mutual exclusion, and the `show` class for default expansion. Suitable for scenarios like FAQs and product details, note consistent IDs, correct JS inclusion order, and manual control of dynamic content.