increasing the font size of product listing price

I altered the font size on the product list by changing the CSS of span.hikashop_product_price_full or
hikashop_product_price but when I increase the font on the product listing the category listing is also increased.
How do I increse the size of the price in the products listing only?

Instead of span.hikashop_product_price_full you should use .hikashop_product_page span.hikashop_product_price_full