CSS Background Images have suddenly disappeared

Hello,

I started adding custom css background images with transitions. They showed up fine. Worked great until I attempted to add some text. I opened up the text box normally and added my code but when I reloaded the image were gone. The two others remained. I figured that the addition of text did it somehow so I opened the text box and saved for the next two and the same thing happened. I did some testing and the css is fine as well as the images being on the server.

Any help would be fantastic. Thanks in advance

Located right under Success Stories. There should be an image above each name and text.

http://marcv.byethost7.com/