Certain Links don't show

Hi,
I’m having two issues with link hovers.

1. On my posts page, the ajax “Load More” button at the bottom of the page loses the link text on hover.

See here:
http://www.whenshitgoesmadmax.com/genco/news/

2. On my shop page, the “Select Options” overlay shows no text until you hover.

See here:
http://www.whenshitgoesmadmax.com/genco/shop/clothing/

Did I screw something up in the Customizer? Or is there some CSS issue?

Thanks,
Chris