{% set defaultPagePadding = "45,15,25,25"|split(",") %} {# top, right, bottom, left #}
{% set pagePadding = pagePadding|default(defaultPagePadding) %}

<style>
    .rulerItemHorizontal {
        position: absolute;
        top: -{{ pagePadding.0 }}mm;
        width: 0;
        height: 7px;
        color: blue;
        border-left: 1px solid blue
    }

    .rulerItemVertical {
        position: absolute;
        left: -{{ pagePadding.3 }}mm;
        width: 7px;
        height: 0;
        color: blue;
        border-top: 1px solid blue
    }
</style>

{# horizontal #}
{% for rulerItemsHorizontal in 10..600 %}
    <div class="rulerItemHorizontal" style="left: {{ smarty.section.rulerItemsHorizontal.index - pagePadding.3 }}mm">
        {{ loop.index0 }}
    </div>
{% endfor %}

{# vertical #}
{% for rulerItemsVertical in 0..600 %}
    <div class="rulerItemVertical" style="top: {{ smarty.section.rulerItemsVertical.index - pagePadding.0 }}mm">
        {{ loop.index0 }}
    </div>
{% endfor %}