variant dropdown list not working

previously on old version of hika shop drop down list to select variant (size) stopped working.

I upgraded to latest version and now when click on size drop down picture pops up. still cannot chose variant. see attached screen shot.

Hi,

It's coming from the main product image overlapping the right part of the page in browser window widths below approximately 1170px.

You're using HikaShop's frontend_old.css file in your site. By following the documentation you may create an override and add some CSS to fix it, e.g.

div#hikashop_product_left_part div img {
    max-width: 100%;
}