CSS Z-Index Issue

If you go to my page: http://23.101.151.179/index.php/store/29
Go to the bottom and click add to cart.  You will see a few Javascript Validation warnings popup on the page.  The problem is, they are messing up the layout of the page.  Is it a z-index issue?  I can't figure it out.  Thanks in advance.
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rgranlundAsked:
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Dave BaldwinFixer of ProblemsCommented:
It's already wrong because your 'help' text (hover over the '?') is stretching the layout and is partially off the screen on my computer.

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rgranlundAuthor Commented:
But that does not address the validation warnings.
Dave BaldwinFixer of ProblemsCommented:
Actually it does.  Both effects are creating elements that open to the right of the main layout.  What is it you think should be happening?
rgranlundAuthor Commented:
Yeah, I see what you mean.  I changed it.  Thanks for the insight!
Dave BaldwinFixer of ProblemsCommented:
You're welcome.  That works better.
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