BootStrap treeview using Json sharepoint custom webpart

I have build/bind treeview of bootstrap dynamically (runtime ) using json

I have 2 problems

1) white color with tree node .how can I solve this issue (attached is snap short for reference)

2) click "+" tree node is not working on any node … as I told I build these node on runtime what to do to solve these issue

Note:

1)Red color showing white spaces which need to remove.

2) yellow color showing click is not working on "+" sign which I build runtime

3) green color showing ( "+" ) click is working fine because its design tree on design time not run time build (its static )

what to do to remove Red and yellow mark error or bug