Styling the [subscriptionform]

Hi Guys,

I have the subscription form displaying fine on my sales page, but I want to add a Johnson box around it so that it stands out better on the page.

I tried doing this:

<div style="border-width: 2px; border-style: dashed; border-color: red; ">[subscriptionform]</div>

...But all that happens is the form gets displayed directly below the Johnson box and not within it

Any ideas?

Thanks
Rob.