Chrome Browser Displaying Larger

Hello! It's me again. I haven't had a chance to try the coding edits you suggested when I was having issues with Chrome displaying my homepage slider correctly. This is my site:https://ieo.wp.d.umn.edu/ I recently installed updates (haven't done anything else) and now Chrome seems to make a few things bigger (top navigation text, or maybe even all fonts) - -and now the top navigation bumps down to 2 lines instead of one. See screen shot of (actual size) browsers side by side - you can see that Chrome (on the left) is appearing larger than Firefox (on the right.) https://ieo.wp.d.umn.edu/wp-content/uploads/2014/06/browser-screen-grab.jpg Any thoughts on this? *(I will be on vacation for 2 weeks, so won't be able to respond, or experiment with this until July). But I thought I would ask. Many thanks in advance for any advice you might share! Best, sbartsch