Lena mentioned that there are a lot of ads on my web page. I checked, and sure enough there were annoying animated ads everywhere, and they messed up my careful formatting. Like this:
Wordpress (platform for my site) says:
Our ads appear at the bottom of posts, in a sidebar, or as a banner on your site.
It is possible for ads to appear in your browser that were not placed there by WordPress.com.
These ads are sometimes caused by malware or a virus, but more often it is due to a browser extension or toolbar that you may have installed in your browser.
I didn't see any extensions that would be responsible. Do you think it's malware?