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Why do hidden div blocks flash when initially loading page?

Hi all –
I’m having a problem that I’m guessing is fairly common, and I’m hoping there’s an easy and elegant solution.

When initially loading my page, I have several text wrapper div blocks that flash visible and then disappear; these text wrappers are meant to appear only when you hover over them.

Tips on how to fix so its a cleaner more elegant load visually?

Here is the live site:

Here is my site Read-Only: