Search field should not randomly move about the screen

Steps to reproduce:

• Go to Advanced Search.
• Click inside the search field.
• Start typing.
  => The search field (with the letters you're typing) is moved up and to the left of where it used to be.
• Submit your search.
• Perform another search.
  => Search field stays in the correct place.

This only seems to happen the first time you search on a document.