How to control accordion collapse speed?

I want to slow down the collapse speed of accordion panels. I’ve no idea and I didn’t find any examples.
Thanks four your help.

Best regards,

I think Accordion collapsing and opening is instant with no animation at all. Proper animations probably require support in the VAccordion widget. You might be able to add some animations in the Sass styles for the Accordion, but the possibilities with just styling may be rather limited. Things like animation for opening an item might be doable with just Sass/CSS, but collapse animations would probably require triggering them with some style name. I am not aware of any such examples.