How to change payment method into radio button?

Hi I wonder how I can change the payment selection into a selection with radio buttons?
Right now it shows a ligh selection when you move the mouse over it, but it is nog very clear and gives a lot of confusion for my customers.
See my screenshot.

Hi,

I think that this is a CSS code issue, can you give me a link to your website for testing purpose ?

the link is www.handelspleintje.nl/index.php/dames-menu/dames-jassen-menu

I did change the language temporary into english to make it easier for testing.

The problem is coming from this CSS property : through the frontend_default.css file.

How can I solve this problem?

By removing/editing this property through the frontend_default.css file .