Form Controls Display Differently Upon Refresh

Hi,
 
I'm having an issue where, if I refresh a page, the elements on that page display differently than they did the time before. Here is an example:
Here is what it is supposed to look like:
 
And here is what it looks like occasionally when I refresh:


 
If you'd like to see this in action, go to http://www.sentimentalweddings.com/categories/category.aspx?cat=ForHer
 
Any ideas as to what might be causing this?
 
Thanks,
Brian

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