<nav class="navbar navbar-default navbar-fixed-top navbar-top">
    <div class="container-fluid">
        <div class="navbar-header">
            <button type="button" class="navbar-expand-toggle">
                <i class="fa fa-bars icon"></i>
            </button>
            <button type="button" class="navbar-right-expand-toggle pull-right visible-xs">
                <i class="fa fa-th icon"></i>
            </button>
        </div>
        <ul class="nav navbar-nav navbar-right">
            <li>
                <button type="button" class="navbar-right-expand-toggle pull-right visible-xs">
                    <i class="fa fa-times icon"></i>
                </button>
            </li>
        </ul>
    </div>
</nav>

<nav class="navbar navbar-default navbar-fixed-top navbar-top">
    <div class="container-fluid">
        <div class="navbar-header">
            <button type="button" class="navbar-expand-toggle">
                <i class="fa fa-bars icon"></i>
            </button>
            <button type="button" class="navbar-right-expand-toggle pull-right visible-xs">
                <i class="fa fa-th icon"></i>
            </button>
        </div>
        <ul class="nav navbar-nav navbar-right">
                <button type="button" class="navbar-right-expand-toggle pull-right visible-xs">
                    <i class="fa fa-times icon"></i>
                </button>
        </ul>
    </div>
</nav>

Fix small UI bug on top bar button disappearing
Fix small UI bug on top bar button disappearing
