When your lists show up with scroll bars on the items, change the overflow to visible from auto and the fix is complete
.art-post ul li, .art-post ol ul li
{
background-image: url(‘images/postbullets.png’);
background-repeat: no-repeat;
background-position:left center;
padding: 16px;/* makes “ul li” not to align behind the image if they are in the same line */
overflow: visible;
background-color: #CCCCCC;
}