I created two custom regions in my Drupal 7 theme and used CSS to float them side-by-side (to create columns). That worked fine, and I'm able to place blocks in the regions, but the contextual links don't display.
I tested them without the float, and the contextual links are right where they should be, leading me to believe that it's the float positioning that's causing the problem.
This isn't too big a deal, since I can go to Structure --> Blocks to administer them, but the contextual links are handy, and besides, it's bugging me and I want to figure it out. Any suggestions?