.commentbox{
background-color: #EcEcEc;
padding: 10px;
}

.commentfooter{
background: url(pix/arrow.gif) 20px 0 no-repeat; /*20px 0 equals horizontal and vertical position of arrow. Adjust as desired (ie: 20px -5px).*/
padding-left: 58px;
padding-top: 4px;
margin-bottom: 2em;
font-size: 90%;
color: #7f7f7f;
}