Code:
LI.ListMenuItem {
width: 142px;
height: 21px;
background-image: url('navbg.jpg');
background-repeat: no-repeat;
background-position: top left;
text-align: left;
vertical-align: top;
padding-left: 7px; /* Give some extra space from the left side */
padding-top: 3px; /* Change it accordingly to your needs*/
}