separator between charateristic values

-- url of the page with the problem -- : artgenetix.world/feminizadas
-- HikaShop version -- : 4.6.0
-- Joomla version -- : 3.10
-- PHP version -- : 7.2
-- Browser(s) name and version -- : chrome

Hello
in this page
artgenetix.world/feminizadas
I would like to separate the value of "quantity" with a dot or a - to be more clear
instead of
3 6 20 50 100
will be great to have
3-6-20-50-100

thanak you


Giulio

resolved! thanks
i added this:
.hikashop_product_characteristic_value_on_listing:not(:first-child):before {
content: '◆';
}