Styling an Array Field Call

[coert_g]

I've got a multiselect box field set up, where users can select which facilities their business has.

However, I'm struggling to find a way to style the results. Calling the field key prints the values contained in the array as "Bar, Restaurant, Toilets" for example.

Could anyone assist on how I could go about styling such a call? For instance, we want a check/tick to be displayed next to all the items in the array, but not display them for items not in the array. Example:

Toilets X |   Bar X |   Swimming Pool   |   Pub X  | BBQ

Thanks