Something happened, everything is very slow.

I am editing this blog for a client of mine.

http://regrettablesincerity.com/test2/

I edited the CSS to my liking and everything was fine. The last thing I did in the CSS was make the title and description line height’s 0 and font sizes 0. And placed a image header in the html. The header image showed very nicely and I thought all was well. But a little while later, I tried loading the page and it probably took a full 45 seconds to a minute to load the page. The admin panel is slow as well.

There are only 3 articles posted as of now and I only have a few basic plugins that weren’t causing any trouble before I edited.

I put the header back the way it was, thinking it might have been that, but it is still slow. I really don’t know what it is. The whole time I was editing the CSS, everything was fine and I don’t understand why changing some things around in the CSS would cause everything to become so slow.

Help would be tremendously appreciated.

Thanks in advance.