Summary Block Carousel + Override CSS page borders

Hello!

I added this CSS below to add custom thin black borders to all sections on a website I'm working on, but now when I add a summary block carousel, it pulls in a border directly on top of the carousel content. How can I override this css styling just for the summary blocks? (ex image shows a summary carousel block from a blog page. I hid image and am just showing the titles of the blogs. note how the line/border is appearing. I want it gone)

header{ border-left: none; border-right: none; border-bottom: @site-border-style; } 
.page-section { border-bottom: .5px solid #000 }

https://terrier-heron-z3ja.squarespace.com/

Hi @Corina What's the password of the website? I can take a look. Thanks!

@Lesum pw is Hello123

thank you!

@Lesum THANK YOU!! It worked!