{{ $id := .Get "numbered" }}

{{ if not (.Page.Store.Get "centered_counter") }}
    {{ .Page.Store.Set "centered_counter" 0 }}
    {{ .Page.Store.Set "centered_map" dict }}
{{ end }}

{{ $counter := 0 }}
{{ if $id }}
    {{ .Page.Store.Add "centered_counter" 1 }}
    {{ $counter = .Page.Store.Get "centered_counter" }}
    {{ .Page.Store.SetInMap "centered_map" $id $counter }}
{{ end }}

<div
    class="centered{{ if $id }} numbered{{ end }}"
    {{ if $id }}id="{{ $id }}" data-number="{{ $counter }}"{{ end }}
>
    {{ .InnerDeindent | safeHTML }}
</div>