Print Layout Galleries Not Centered

Galleries are properly CENTER-aligned when Viewing Web Page,
but are improperly LEFT-aligned on Print Page Layout,
yet are center-aligned if printing just a selected/highlighted area of the page.

a) “View” web page with a gallery, gallery is “centered” (as desired)

b) “Print Preview” same page, the gallery becomes “left” aligned.

c) “Select/Highlight” the body of the page, then use the “print selected area only” option at print/preview time and gallery becomes “centered” instead.

Here is a Sample Page (but it happens on all of our gallery pages):
https://lelacappelle.com/galleries-menu/houses-at-le-lac/

This did not happen in WordPress 3.8.3, we skipped 3.9, then noticed it after updating to WordPress 3.9.1 “and” updating the Twenty Fourteen theme.

It behaves the same way in Chrome and IE.

Any thoughts would be appreciated.