Background color : Form it's not changing the background color

We are trying to get the background of form (not behind form) in black (font is white). It;s not working. Can you please look to see what the problem is?

https://form.jotform.com/60138993288973

Hi,

Please, inject this CSS code : 

.form-section{

background:transparent;

} 

It should set the current white color to transparent and allow to show the black background.

See my result here : https://form.jotform.com/60217147621953 

Do let us know if it works.

Thanks.