My Marketpress pages are blocking the sidebar

Sorry if I am asking a similar question twice:
Previously my marketpress pages (product listing, single product, cart and order status) (the main store page is fine) were overlapping my sidebar. I thought I had fixed it by adding a width of 80% to the icon css but this seemed to only fix how it looks. It still seems to overlap the sidebar because I can't click on the sidebar at all.

http://millrivergardensupply.com/blog/store/products/