Hi,
I have been checking this website and wanted to apply the same style of panel names (expand and collapse) in XWiki: Wiki Knowledge Base | Teltonika GPS
I wanted to know, if somebody knows how to achieve the same style of expand and collapse of categories inside of XWiki?
@turajmammadli
The collapsing panel feature is discussed in this topic UI proposal: Panel column togglers
Is that what are you interested in?
BTW, your topics do not have a category assigned, please set the Help/Discuss category when you create new ones.
@turajmammadli You’re posting a lot… please make sure you’re helping others too! 
Also please make sure to set the category of your posts properly, it’s painful to have to edit each of your posts. Thx!