How can I get the dropdown menu to appear on top of the dialog?

Question

I have a navbar at the top with some dropdown menus. I also have dialogs that pop up (using alertifyjs). I would like the dropdowns to be able to be on top of the dialogs. How can I do that?

I created a JSFiddle to illustrate.

HTML

<nav class="navbar navbar-default navbar-static-top">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>

Javascript

$(document).ready(function() {
  alertify.alert('hello').set('modal', false).set('moveBounded', true);
});

Answer 1

You'll need to set a z-index in CSS on the drop-down/navbar to a value higher than what's set on the modal.

nav.navbar-static-top 
{
  z-index: 9999;
}

I checked the Fiddle you posted and the Modal has a z-index set to 1981, so a z-index of 9999 is sufficient to place it above the modal.

Based on your comments about your desired result, unfortunately because of the way the navbar is structured there's no easy way to have the navbar behind the alert but the dropdown be above the alert. So your best bet would be to do what I suggested above where the entire navbar stays on top of the alert, but configure the alert to always clear the navbar.