I'm new to the forum, and to injecting custom CSS to SqSp in general. This might be a relatively straightforward issue to resolve - though I'm looking for some guidance.
I would like to change the line-block colour, line thickness, and decrease the bottom padding on this elements, across my whole site.
Here is a demo of the issue in situ: https://claudius-knig.squarespace.com/config#/pages|/write/(the lines running above each image should be closer to the image, thicker line, and coloured orange)
Thanks for any help/guidance :)