Strange dynamics with a line of text

I have one section of my text that changes to white as I roll over it. I can not figure out what is different that is causing it.

http://www.newdermeo.com/newdermeo-eczema-dermatits-treatment/

German Chamomile Essential Oil

German Chamomile Essential Oil calms dermatitis and inflamed skin conditions. It contains azulene, which is a powerful anti-inflammatory agent. It is effective for most skin types in treating acne, bruises, burns, cuts, dermatitis, and eczema. It is analgesic which soothes pain, antibacterial One of its primary benefits in treating skin conditions is that it is antiallergenic and actually aids in the function of the liver; both of which help those whose skin conditions are due to allergies.

Starting at IT IS ANALGESTIC