Sidebar is the component, that has a hierarchical structure of elements and can be collapsed into a navigation bar. All that will be visible on the screen are the icons.
You can easily customize the content of the items. In the inner content you can put absolutely anything - from lists to complex components.
Side menu allows you to minimize the space and it can easily fold and unfold.
Sidebar works flawlessly across all modern browsers such as IE10, Mozilla Firefox, Opera, Chrome and Safari.