How can I make my one-line form minimal and transparent?

I am trying to make our email sign up form minimal and transparent. Just a singel field and submit button.

This is what I am trying to achieve...

http://gynexgroup.com/suppliers/jotform/signup1.JPG

But this is what the form looks like...

http://gynexgroup.com/suppliers/jotform/signup2.JPG

Can you tell me how to achieve what I want?

Thanks

I did some adjustments on your form so your background is transparent: 

You can find here what I changed:

Hope it helps. If you need further assistance please let us know.

Thank you!

Thank you for the transparency. The other problem with it is that there is a lot of additional room around the field making the 'form' 100% larger than the field/submit button. Can we trim away all of the excess margins/padding on sides and top to have a very minimal footprint.

I did padding and margin adjustments in your form, and this is how it looks like now:

If you need any extra adjustments please let us know.

Thank you!