{# Sprite 3 colonnes × 4 lignes — icones-mail-annonce.png (1024×1536) #}
{% macro render(spriteUrl, col, row, size) %}
{% set x = col == 0 ? '0%' : (col == 1 ? '50%' : '100%') %}
{% set y = row == 0 ? '0%' : (row == 1 ? '33.333%' : (row == 2 ? '66.666%' : '100%')) %}
<span style="display:inline-block;width:{{ size }}px;height:{{ size }}px;overflow:hidden;vertical-align:middle;line-height:0;font-size:0;">
    <span style="display:inline-block;width:{{ size }}px;height:{{ size }}px;background-image:url('{{ spriteUrl }}');background-repeat:no-repeat;background-size:300% 400%;background-position:{{ x }} {{ y }};">&nbsp;</span>
</span>
{% endmacro %}