Child CSS Issue

Hi,
I posted a question a few days ago and it has not been answered. I don't want to create a duplicate post so here is the link... https://premium.wpmudev.org/forums/topic/child-css-loaded-before-theme-css#post-396073

In short, product-child.css appears higher in the HTML source than product.css. Therefore our child styles are always overridden by the main theme styles. How can I reverse the order in which the stylesheets are loaded?