Pop up Form doesn’t let me scroll down. Please help.

Hello, Great plugin and checking it out.
I have this form on a modal and there are 2 more fields below, but it doesn’t let me scroll down to them. I changed the height to even a longer one and that still doesn’t let me scroll my form down.

Also for some reason, the CSS style of the whole form changes to a color and font and format it does not usually have.

Thank you in advance.