una/studio/template/bp_cell.html

<div class="adm-bp-cell border border-dashed border-gray-300 bg-gray-100 rounded-lg">
    <div id="adm-bpc-__id__" class="adm-bp-cell-cnt flex flex-col gap-2">
        <bx_include_auto:bp_blocks.html />
    </div>
</div>