title: MudBlazor AppBar does not stick at position
body: <p>I have this in my <code>MainLayout.razor</code></p>
  <pre><code>@inherits LayoutComponentBase
  @using System.Security.Claims
  @inject HelpDesk.Client.Services.Interfaces.IAuthService AuthService
  
  &lt;MudLayout&gt;
      &lt;MudAppBar Elevation=&quot;3&quot; Fixed=&quot;true&quot;&gt;
          &lt;MudIconButton Icon=&quot;@Icons.Material.Filled.Menu&quot; Color=&quot;Color.Inherit&quot; Edge=&quot;Edge.Start&quot; OnClick=&quot;@((e) =&gt; DrawerToggle())&quot; /&gt;
          &lt;MudText Typo=&quot;Typo.h5&quot; Class=&quot;ml-3&quot;&gt;Autosweep Help Desk&lt;/MudText&gt;
          &lt;MudSpacer /&gt;
          &lt;MudIconButton Icon=&quot;@Icons.Material.Filled.MoreVert&quot; Color=&quot;Color.Inherit&quot; Edge=&quot;Edge.End&quot; /&gt;
          &lt;AuthorizeView&gt;
              &lt;MudMenu FullWidth=&quot;true&quot; ActivationEvent=&quot;@MouseEvent.MouseOver&quot;&gt;
                  &lt;ActivatorContent&gt;
                      &lt;MudChip Icon=&quot;@Icons.Material.Filled.AccountCircle&quot; Color=&quot;Color.Warning&quot;&gt;@context.User.FindFirst(ClaimTypes.GivenName).Value&lt;/MudChip&gt;
                  &lt;/ActivatorContent&gt;
                  &lt;ChildContent&gt;
                      &lt;MudMenuItem @onclick=&quot;@(() =&gt;  AuthService.Logout())&quot;&gt;
                          Logout
                      &lt;/MudMenuItem&gt;
                  &lt;/ChildContent&gt;
              &lt;/MudMenu&gt;
          &lt;/AuthorizeView&gt;
      &lt;/MudAppBar&gt;
      &lt;MudDrawer ClipMode=&quot;DrawerClipMode.Docked&quot; @bind-Open=&quot;_drawerOpen&quot; Fixed=&quot;true&quot; Color=&quot;Color.Success&quot; Elevation=&quot;1&quot;&gt;
          &lt;MudDrawerHeader&gt;
              &lt;MudText Typo=&quot;Typo.h6&quot;&gt;Prototyping&lt;/MudText&gt;
          &lt;/MudDrawerHeader&gt;
          &lt;NavMenu /&gt;
      &lt;/MudDrawer&gt;
      &lt;MudMainContent&gt;
          @Body
      &lt;/MudMainContent&gt;
  &lt;/MudLayout&gt;
  
  @code {
      bool _drawerOpen = true;
  
      void DrawerToggle()
      {
          _drawerOpen = !_drawerOpen;
  
  
      }
  }
  
  &lt;MudThemeProvider /&gt;
  &lt;MudDialogProvider /&gt;
  &lt;MudSnackbarProvider /
  </code></pre>
  <p>but the &quot;MudAppBar&quot; does not stick at the top when I have a body that is long.</p>
  <p><a href="https://i.stack.imgur.com/Qqgfv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Qqgfv.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/6WE4S.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6WE4S.png" alt="enter image description here" /></a></p>