Nov 23, 2017 11:09 AM|Eric Du|LINK
According to your description, if you use treeview node to locate the content paragraph instead of to load different page? So you click node the page scroll move!
About that gif image, it is in your Network, so I can not access it in my side? so you could upload it to this site(http://postimages.org/), we could check it.
About you want the auto width of div that contain the treeview, I notice that you have use bootstrap grid system, so the width is responsive.