First character cutting off photo captions in photo grids in portfolio project pages in mobile view

Site URL: https://www.barbarazirl.com/project-gallery/media-relations-writing-editing-proofreading-andretti

I'm using Squarespace 7.1. In the Portfolio section Project Pages - in mobile view -  the first characters of the photo captions are cutting off when I'm using a photo grid. How can I fix this? I noticed the same issue with single images, but found a CSS solution which fixed that problem.  Thank you for your assistance.

Add to Design > Custom CSS

p.gallery-caption-content:before {
    content: "";
}

THANK YOU! This worked perfectly! You are brilliant! I am so grateful