Can I remove the gray background on my thank you page?

I have several questions. I have tried to make some of the changes you suggest and they look great but I’m having some troubles. My site is located at

www.kaleinvestigation.com

Problems

1.     Can I remove the gray background on my collection form thank you page?

2.    

3.    

4.    

1. Can I remove the gray background on my collection form thank you page?

Inject the following CSS Codes to your Form Builder to remove the gray background from the Thank You page.

.thankyou {

  background: none !important;

}

Complete guide: How-to-Inject-Custom-CSS-Codes 

Result: 

The next 3 questions were moved to their separate threads

2. Can I move the thank you page to the left on my contact us form?

https://www.jotform.com/answers/1186633 

3. Why does the name of the submitting party on the collection form not show on the thank you page?

https://www.jotform.com/answers/1186634 

4. How do I make the person submitting a form on my site return to my home page after they have submitted a form?

https://www.jotform.com/answers/1186635 

We strive to stick with 1 question/topic per thread to avoid confusion. We'll have each of them addressed shortly.