I know some of us know this but nevertheless I want to share the knowledge in this blog.
In this tutorial we need to use Google Chrome web browser. It is powerful tool for developer and web designer. Simple, clean and yet so heavy. Anyway here are the tricks.
1. Open your Google Chrome and open your application.
2. Go to the page that required your attention and right click, 'Inspect Element'.
3. Then copy your tested CSS and paste it to your form builder / userview builder in the CSS section properties. Good luck.