I have the following CSS code
.editable:before {
content: url(../images/icons/icon1.png);
padding-right:5px;
}
this is used in conj
Update: I misread the page! IE 8 does support :before with images, it just doesn't when it is in IE7 compatibility mode.
IE8 supports :before, but not and also images as content when not in compatibility mode. Kudos to @toscho for testing!
Source
Detailed comparison of which browsers can deal with what sort of content
How I love quirksmode.org, which makes dealing with this stuff at least half-way bearable. The guy deserves a medal!