Minor edit to style.css causes major alterations to entire site. Corruption???

Hey everyone.

I made what I thought was an innocent change to my site today. In style.css, I added a border to the wrapper on the homepage (as I’ve done several times before, without issue), and suddenly the site looked very different. Footer disappeared, titles I’d hidden had reappeared, all the customizations I did to the sidebar no longer applied, and images aren’t automatically resizing to fit within the page width.

I immediately took out the change I’d made, but it seems that it’s too late. I’ve looked over the area of code I’d been editing just to make sure things looked okay and they do:

.home .sticky {
	background: #FFFBD5;
	border-top: 0px solid #000000;
	margin-left: -20px;
	margin-right: -20px;
	padding: 18px 20px;

Even now as I try to do things like change the sidebar font back to what I had before, it’s having the effect of changing the padding on the homepage wrapper.

Does anyone recognize this issue? What does this mean? Is it possible one of my files is corrupt? What should I do in this situation?

Thanks for any help..

Site is myvibrantliving.com

PS: If anyone has a link to the site with the default twentyten files, I’d appreciate a link very much. I can’t seem to find it in Google.