TOPIC: Can't see the website icons after loaded

http://ancientdelight.com/Sacrificial-Vessels/Sacrificial-Vessels-item-1.html

When the page is loading the comments, all website icons of several comments appeared:)

After loaded, all website icons disappeared!

My css.css code:

#comment .postwebsite,#comment a.postwebsite:link, #comment a.postwebsite:visited, #comment a.postwebsite:hover {
background: url(../images/html.png) no-repeat !important;
background-position: 2px -2px !important;
padding-left: 16px !important;
font-weight: normal !important;
white-space: nowrap !important;
}

How come?

Hm, what? I don't understand what is wrong.

Is it the problem with css??? because I only change the css code in these few days.

I don't see which icons are disappearing to help you!
Make a screen shot please.