Right Align a second item in the post template

Hi everyone,

I’m playing around with the Query Loop, and working to replace a price list for a client.
It is very simple, a name of a product and it’s price
I have set the two entries in the Post Template to inline width, which works fine.
But I’m having trouble getting the price to be right aligned.
I’ve tried using: justify-content: space-between;
which is supposed to do what I want, but it’s not working.
Anyone have an idea how to achieve this?

TIA, Dave