### Sub Menu on Click

#### Description

Default dropdown menu opens on click. Via data attributes `data-open="click"` or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the `.open` class on the parent list item.

Experience it!

Please check horizontal layout menu open on click example to experience it live.

#### HTML Markup

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

- Line no 4: Contain the `data-open` attribute has `click` in `body` tage. Option `data-open="click"` will open all the dropdown on click.

                <!DOCTYPE html>
                  <html lang="en">
                    <head></head>
                    <body data-open="click" 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-light 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>