Lay out product page

On the following test-website the products prices appear above the 'amount-choice' and 'add-to-cart' button. Anyway, this is in Firefox. In Safari and IE the price is in the same line so it messes up the lay-out.
Can this be fixed through CSS or does this have to be hardcoded in the document itself?
Thanks!

This does not look as our default add to char button design.Seams like you already had some changes. The style for that is in :
components\com_virtuemart\themes\hot_ecommerce\theme.css

Actually i didn't make changes to the virtuemart template. I only made changes in the joomla template. What I'm trying to achieve is to get the price above the amount-choice, and the add-to-cart button below it. What I don't know is whether to achieve this through CSS or to change it in the file (and which file I also don't know). So I'm rather helpless at this point. Hope you can show me the right direction.

Add this to the bottom of file I gave you link last time:

INPUT.addtocart_button{
float:left;
}

Thanks! I will try and let you know.