Bootstrap">
          <i class="far fa-fw fa-window-maximize"></i>
          <span>Bootstrap UI</span>
        </a>
        <div id="collapseBootstrap" class="collapse show" aria-labelledby="headingBootstrap"
          data-parent="#accordionSidebar">
          <div class="bg-white py-2 collapse-inner rounded">
            <h6 class="collapse-header">Bootstrap UI</h6>
            <a class="collapse-item" href="alerts.html">Alerts</a>
            <a class="collapse-item active" href="buttons.html">Buttons</a