our-active-class

cshtml
@foreach (var item in Model.Root().Children)
{
    <a href="@item.Url()" class="nav-link" our-active-class="nav-link--active">@item.Name</a>
}

cshtml
<ul>
    @foreach (var item in Model.Root().Children)
    {
        <li our-active-href="@item.Url()" our-active-class="selected">
            <a href="@item.Url()" class="nav-link">@item.Name</a>
        </li>    
    }
</ul>