How to add a scrollbar?

Issue

I have hidden menus and submenus, if I open all my hidden submenus. I don't know how to see the last menu, because I don't have a scroll bar.

How to add a scrollbar?

Here is my project -> here

Solution

I'm not sure if you mean like this. Try this code

.sidebar {
  position: fixed;
  height: 100%;
  width: 330px;
  background: #0a2558;
  transition: all 0.5s ease;
  overflow-y:scroll;
}

.sidebar::-webkit-scrollbar {
  display:none;
}

Answered By - Crystal