Make text in Event plugin larger

Hello!

Our client uses a plugin to generate events, and the theme I am using for the website causes the font to be rather thin, small and hard to read. The plugin itself doesnt have any advanced settings to change any features, and I’m not sure what class the text belongs to, to try and change it. If i can also change the font weight in the pop-up it generates that would also be useful.

The page in question is home-new, and I’ve attached some screen shots of the section.
Any help is appreciated.

Thanks!