jellyfin-web/dashboard-ui/secondaryitems.html

<div id="secondaryItemsPage" data-role="page" class="page libraryPage noSecondaryNavPage" data-menubutton="false">

    <div data-role="content">
        <div class="viewSettings">
            <div class="listTopPaging">
            </div>
        </div>
        <div is="emby-itemscontainer" id="items" class="itemsContainer paddedItemsContainer vertical-wrap" style="text-align:center;"></div>
    </div>

</div>