Usability: indicating expandability

[kputh]

The session items it the session lists are expandable. However, there is no indication of this functionality beyond the 'Expand all' link at the very top of the list. So the user may not find the session description hidden in the expanded session item. An icon like a downward- and an upward-pointing triangle should be enough to indicate expandability.

(See https://material.io/tools/icons/?search=expand&style=baseline for examples of said icon.)

[kputh]

An alternative solution is to turn each session item into a details element:

caveats

All modern and mobile browsers except for Edge support this element. But I'm not sure how easily it can be styled.