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Problem: every since I upgraded to Safari 4 I’ve been annoyed that zooming in and out seems to confuse GMail and and Google Reader. When you zoom out, GMail refuses resize its panels, leaving a big blank space on the right side; when you zoom in, Google Reader loses its button panel at the bottom of the main area if you’re in a feed with a lot of entries.
Solution: go to the “View” menu and select “Zoom Text Only”.
New problem: the other setting is cooler for other sites, since it magnifies images and keeps non-fluid layouts from wrapping stupidly when you really need the text to be a little bit bigger. I wish there were a way to set it per site, but it’s a global setting. Oh well, no big deal, at least now I know where it is if it comes up.