Flip-Box ‘Flash’ issue

3 columns, flip-box in each. On first page load there’s a flash of part of the reverse-side of the flip-box… like it renders at 70% flipped and then completes the flip to show the front.
Not a biggie, but a bit ugly. I think it’s because the CSS is loaded in footer… is there an easy way to load it in head instead?
Great plugin though, many thanks.