BG keeps deleting important lines in my CSS file

[Philip Goddard]

I have a particular class defined in my stylesheet file -

.attention {
font-weight: bold;
color: #00008b;
background: url(attention-before.gif) no-repeat 0% 50%, url(attention-after.gif) no-repeat 100% 65%;
background-color: rgb(255, 255, 255); /* The Fallback */
background-color: rgba(255, 255, 255, 0.5); /*with transparency*/
padding-right: 16px;
padding-left: 18px;
}

What I find is that periodically BG deletes the following lines from that:

background: url(attention-before.gif) no-repeat 0% 50%, url(attention-after.gif) no-repeat 100% 65%;
background-color: rgb(255, 255, 255); /* The Fallback */
background-color: rgba(255, 255, 255, 0.5); /*with transparency*/

This renders that style useless until I notice and restore those lines from a backup.

This is nothing to do with the new version 3 - the only reason why I didn't report it much earlier being that I didn't realize that it was BG that was doing it.

It is essential that BG not delete any lines in my CSS file, at least without asking me, so I'd most appreciate a fix for this.  -- Many thanks.

Philip