Edit CSS of any element?

Hi @inclusive

It should be exactly the same in Squarespace as in any online platform.  Simply target the image(s) you want to format by class or id and then specify the border:

<style>
  img {
    border: black 2px solid;
  }
</style>

You can add this into the Header of your site as a whole - or just the page itself.

Hope it helps!

Andrew
DCODE GROUP