Coupon Code Box changes style

My coupon code box is supposed to look like it does here:

https://eagleklaw.com/cart/

But when I enable Bootstrap one-page checkout it loses its style settings and looks like it does here:

https://eagleklaw.com/checkout/

Does anyone know how to fix this?

• This topic was modified 8 years, 2 months ago by mkantar4.