Need help for darkmode?

Hello there.

Check the picture – https://prnt.sc/w2jl5f

From the button right-top you can use darkmode in my site, but team members box is white. So i need to add in my style.css’s theme a darkmode code to change the color for this box only when i use the button. I’ve done this for few plugins, but i don’t know what is the class for this background. For example.

My other plugins works in darkmode like this:

(style.css’s theme)

.darkmode #wpforo .stylebox
background-color: #333

So basically i need to add a line that is connected to this box, so i can change the color for the dark mode. I hope you understand what i mean.

my site – https://otaku.bg/otakubg/team/