Branding File Form Inspection

Summary

How to locate form code in the branding file to change

Content

I am trying to change some code in our branding file dealing with forms. I used the inspecting tool via Chrome and FireFox. I understand that if the inspector says styles.css:817 that the code is found in my styles.css file. But, the code that I am looking for has processes.css:946. I do not see a file named "processes" in the branding file. So, how do I locate the file/location for this code?

See attached image.

Thanks