Accordion line spacing adjustments? Help please...

Site URL: https://selenohealth.com/pages/stockists

I am building a Retail Stockists page of stores who range our product.  With the standard set-up the spacing is slightly too large for the look we are after (see attached).  Each drop down will be a region and then we will add the details of stores to each region (name address phone number).  Talking to the attached I think half the distance between the lines on no space would be better (i.e. between store name and address) and then half the distance agiain with a space would suit (i.e. from one store to the second store).  Please see the attached URL example for what I am aiming for.  Having slightly smaller text for the store's details (not name) would be ideal too as per the example.

Does anybody have any help?  Sorry of these are very silly questions as I'm pretty naïve with all this.

Many thanks 

Can you share link to page in screenshot? We can help easier