Actually, scrap that Steve as I think I see the problem. In css/style.css around line 217, for div.detailquantitytext remove the float:left Also, around line 219 it would look better if you remove for #w0quant the... border: 1px solid #CCC Is this style.css based on one of ours? I just ask as if so I will fix the problem in the source.
Those amendments have sorted the issue. The template is the Responsive Indoors PHP, not the premium. I was looking at the demo one last evening to see if I could fathom it out and that's what lead to my email to you.
Steve Manchester England
Remember - Any edits to the ectcart.css file will be overwritten by updater's. ALL edits to ectcart.css rules should be placed in your style.css file