changing width of text input fields in medium

Hi there,

I'm stuck on changing the widths of my text input fields despite several attempts. My form is here: http://www.jumpstartmd.com/ppc/

Visually, I want the forms to be around 280 pixels or around 100%, and extend to the edge of the graphic above the form.

Here's the code I've tried after various combinations attempted from others' forum posts (I promised I tried lots)

#gform_wrapper_10 input[type="text"] .medium {
width: 95% !important;
}

and

#gform_wrapper_10 input[type="text"] {
width: 95% !important;
}

and

body #gform_wrapper_10 input[type="text"] .medium {
width: 95% !important;
}

Thanks in advance!

Hmm, that didn't work for me? I even tried changing the gform_wrappers to IDs instead of classes since I had an issue with that previously. Tried it with and without the form ID (10) as well. Nada :(