rYNRqm

<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
      <a class="navbar-brand" href="#">Navbar</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

<div class="collapse navbar-collapse" id="navbarsExampleDefault">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">Link</a>
          </li>
          <li class="nav-item">
            <a class="nav-link disabled" href="#">Disabled</a>
          </li>
          <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle" href="https://example.com" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</a>
            <div class="dropdown-menu" aria-labelledby="dropdown01">
              <a class="dropdown-item" href="#">Action</a>
              <a class="dropdown-item" href="#">Another action</a>
              <a class="dropdown-item" href="#">Something else here</a>
            </div>
          </li>
        </ul>
        <form class="form-inline my-2 my-lg-0">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>
      </div>
    </nav>
<div id="app" class="container">
  <div  :class="{toggled: showNav}" id="wrapper">

<div id="sidebar-wrapper">
      <ul class="sidebar-nav">
        <li class="sidebar-brand">
          <a href="#">
                        Start Bootstrap
                    </a>
        </li>
        <li>
          <a href="#">Dashboard</a>
        </li>
        <li>
          <a href="#">Shortcuts</a>
        </li>
        <li>
          <a href="#">Overview</a>
        </li>
        <li>
          <a href="#">Events</a>
        </li>
        <li>
          <a href="#">About</a>
        </li>
        <li>
          <a href="#">Services</a>
        </li>
        <li>
          <a href="#">Contact</a>
        </li>
      </ul>
    </div>

<div id="page-content-wrapper">
      <div class="container-fluid">
        <h1>Simple Sidebar</h1>
        <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the
          page content will be pushed off canvas.</p>
        <p>Make sure to keep all page content within the <code>#page-content-wrapper</code>.</p>
        <p>${ showNav }</p>
        <button class="btn btn-secondary" id="menu-toggle" @click="toggleNav">Toggle Menu</button>
      </div>
    </div>
  </div>