兩個box 之間的margin 相鄰(adjoining) 時，可能會讓margin 發生合併，這個現象就被稱為collapsing margin，而合併的margin 就被稱為collapsed ... ... <看更多>

min.css as a stylesheet; include jquery in your page scripts; include dist/js/collapse.js or dist/js ... ... <看更多>

No css is required at all as the collapsing and showing are part of the tags definition/formatting. I've made an example here: <details> <summary>This is what ... ... <看更多>

CSS Expand/Collapse Section | Accordion Html CSS Effects | Speed Code= ... CSS Neon Button Effects on ... ... <看更多>