Nice. I used collapsed-by-default boxes from time to time when I used to write/edit Wikipedia physics articles—usually (or maybe exclusively) to hide a math derivation that would distract from the flow of the physics narrative / pedagogy. (Example, example, although note that the wikipedia format/style has changed for the worse since the 2010s … at the time I added those collapsed-by-default sections, they actually looked like enclosed gray boxes with black outline, IIRC.)
Nice. I used collapsed-by-default boxes from time to time when I used to write/edit Wikipedia physics articles—usually (or maybe exclusively) to hide a math derivation that would distract from the flow of the physics narrative / pedagogy. (Example, example, although note that the wikipedia format/style has changed for the worse since the 2010s … at the time I added those collapsed-by-default sections, they actually looked like enclosed gray boxes with black outline, IIRC.)