Change font style of template card

Configuration Frontend
1

Hi,

does anyone know, how to change the font-style to italic of the template-card? the line “card-secondary-font-style: italic;” is not working. I only found a solution to change the font-style for both lines.

    card_mod:
      style:
        mushroom-shape-icon$: |
          .shape 
            {
             --icon-symbol-size: 30px;
             --icon-size: 30px;
             --shape-color: transparent !important;
            }
        .: |
          ha-card 
          {
           margin-top: px;
           margin-bottom: 0px;
           border: none !important;
           ha-state-icon:hover
             {
              --icon-symbol-size: 40px;
             }
           {% if is_state(config.entity,'on') %} 
             --card-primary-color:;
             --card-secondary-color:#00CC00;
           {%else%}
             --card-primary-color:#7E7E7E;
             --card-secondary-color:#7E7E7E;
             --card-secondary-font-size: 10px;
             --card-secondary-font-style: italic;
           {% endif %}
          }