### Collapsible Navigation

#### Description

Vertical collapsible navigation menu open or close only on menu click, it is useful for those menu have less menu item and need remain open last clicked menu option. You can experience collapsible navigation in left side menu.

Experience it!

This page contain collapsible navigation menu options example, check at the left hand side of the page.

#### CSS Classes

This table contains all classes related to the vertical collapsible navigation option.

All these options can be set via following classes:

Classes | Description
--- | ---
`.menu-collapsible` | To create vertical collapsible navigation, you need to add `.menu-collapsible` class in navigation `<div>` tag. Refer HTML markup line no 12.

#### HTML Markup

This section contains HTML Markup to create vertical collapsible navigation. It define where to add css classes to make vertical collapsible navigation.

- Line no 12: Contain the `.menu-collapsible` class to set vertical navigation collapsible.

                          <!DOCTYPE html>
                            <html lang="en">
                              <head></head>
                              <body data-menu="vertical-menu" class="vertical-layout vertical-menu 2-column menu-expanded">

                                <!-- fixed-top-->
                                <nav role="navigation" class="header-navbar navbar-expand-sm navbar navbar-with-menu fixed-top navbar-dark navbar-shadow navbar-border">
                                    ...
                                </nav>

                                <!-- BEGIN Navigation-->
                                <div class="main-menu menu-dark menu-collapsible menu-shadow">
                                    ...
                                </div>
                                <!-- END Navigation-->

                                <!-- BEGIN Content-->
                                <div class="content app-content">
                                    <div class="content-wrapper">
                                        <!-- content header-->
                                        <div class="content-header row">
                                            ...
                                        </div>
                                        <!-- content header-->

                                        <!-- content body-->
                                        <div class="content-body">
                                            ...
                                        </div>
                                        <!-- content body-->

                                    </div>
                                </div>
                                <!-- END Content-->

                                <!-- START FOOTER DARK-->
                                <footer class="footer footer-dark">
                                    ...
                                </footer>
                                <!-- START FOOTER DARK-->

                              </body>
                            </html>