.tickercontainer { /* the outer div with the black border */
	position: relative;
	color: #fff;
	background: #be5f88 url(../images/ticker_background.gif) no-repeat;
	width: 950px;
	height: 22px; 
	overflow: hidden; 
}
.tickercontainer .mask { /* that serves as a mask. so you get a sort of padding both left and right */
	position: relative;
	width: 950px;
	overflow: hidden;
}
ul.newsticker { /* that's your list */
	position: relative;
	left: 950px;
	list-style-type: none;
	margin: 0;
	padding: 3px 0;
}
ul.newsticker li {
	float: left; /* important: display inline gives incorrect results when you check for elem's width */
	margin-right: 50px;
}
ul.newsticker a {
	white-space: nowrap;
	color: #fff;
}