Adding on to this:
For mobile iOS and iPadOS, download Web Inspector and follow the instructions it has. I use it, perfectly like desktop inspect tool minus the ability to change what you highlighted. I find it very useful for figuring out the specific lines of code that I need to change / add.
Vennenum said:
Easy tip guys: use the Inspect Elements in your browser. It'll show you the selector or classes you need to change.
Will edit to add a good non-iOS app for inspection. Also please note that I am a primarily iPhone / laptop user. If you need help, I'm happy to help whenever I can!