I have a region on my home page called home_area_1. It contains several blocks. I want those blocks to be formatted in the same way, so I created a template called block--home-area-1.tpl.php. It is formatting those blocks correctly, but it's also being applied to blocks in other regions on the home page.
What am I doing wrong? I only want the blocks in this particular region to use this template.
I'm on Drupal 7.35, and am fairly new at this.