JSFiddle - React, Tailwind, and code Playground

HTML

<div class="navbar-collapse collapse">
                
                    <ul class="nav navbar-nav" style="display:inline-block">
                        <li>@Html.ActionLink(...)</li>
                        <li>@Html.ActionLink(...)</li>
                        <li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li><li>@Html.ActionLink(...)</li>
                    </ul>
                
                <div class="mysettings-menu">
                    <ul>
                        <li>
                            <a href="#">Settings</a>
                            <ul class="sub_menu">
                                <li><a href="#">Log In</a></li>
                                <li><a href="#">Add New Application</a></li>
                            </ul>
                        </li>
                    </ul>
                </div>
             </div>

CSS

.navbar-collapse{

    border:1px solid red

}
.mysettings-menu{
    border:1px solid blue;
    display:inline-block;
    position:absolute;
    right: 10px;
    
}