You wish to hide the left navigation bar or category manager by default in the Knowledge base site. You can hide this to enhance the readers' experience. However, readers can enable it by clicking the Show category icon adjacent to the article title.

Solution

8_Screenshot-How_to_hide_the_left_navigation_bar_in_the_knowledge_base_site

  1. From the Knowledge base portal, go to Settings → Knowledge base site → Custom CSS & JavaScript → Custom CSS

  2. Paste the below CSS snippet in the window

.left_sidebar {
 display : none;
}
  1. Click Save

Outcome

Before

The left navigation bar or category manager is shown by default.
22_Screenshot-Before_left_navbar

After

The left navigation bar or category manager is hidden by default.
21_Screenshot-After_left_nabar