How can I increase the width of the image description in Forte?

Hello! I'm using Forte, and in the project gallery I have added a description to the image, but it does not go the full width of the image. Is there CSS to fix this? @Paul2009 I think you've solved similar problems for other people : ) Can you help, please?

Thank you so much! I've been searching the forum, but don't see exactly what I'm looking for.

I think I've figured this out, in case anyone else would like to try it...

.image-description {max-width: 100% !important;}

I really don't know anything about coding, I just pieced together a few good guesses : ) Would love to know if this works for you!