add multiple components to html.Div in loop

I am trying to show some rangesliders depening on the boxes I check in the sliders. The amount of boxes is variable (in the current code some dummy variables) so I think I'll have to add the rangeslider in some sort of callback loop. The way I am doing it now only shows one rangeslider. See the code below.

code pt1

code pt2

Hope you guys can help me out.