plugin auto adjusting to responsive themes

Hi,
I would like to tell you that i really love your plugin. Simple and very elegant. Problem i am running into is that our site is fully responsive to take advantage of different screen sizes. Like most modern themes these days.

However when viewed on smaller screens for example on the iPhone in portrait view your plugin does not adjust its width to fit smaller screens.

Only thing needed would be for the Friend’s Email field to move below Friend’s Name field when it is viewed on smaller screens.

Can you please let me know how to accomplish this.

Thank you.

Adrian

http://wordpress.org/plugins/invite-friends-to-register/