Template Disaster

I was working on the template early this morning, scrolling up and down searching for the right place to change the sidebar background color, when suddenly half the template disappeared. This is the second time this has happened to me. I make several changes to the template's colors. They all go through fine. The blog is republished and looks perfect. I contemplate the next change I want to make, I scroll down, and wham-o! Kaput! Half the template has vanished. It's so aggravating, made all the more so by the fact that I had neglected to save a copy of my template on Word. How idiotic.