求横向单行文本不间断滚动新闻的代码！

<style type="text/css">
<!--
.placeholder a:link {
font-family: "Tahoma";
line-height:12pt;
font-size: 8pt;
font-weight: normal;
color: #959291;
text-decoration:none;
}
.placeholder a:visited {
font-family: "Tahoma";
line-height:12pt;
font-size: 8pt;
font-weight: normal;
color: #959291;
text-decoration:none;
}
.placeholder a:hover {
font-family: "Tahoma";
line-height:12pt;
font-size: 8pt;
font-weight: normal;
color: #F69B41;
text-decoration:none;
}
.placeholder a:active {
font-family: "Tahoma";
line-height:12pt;
font-size: 8pt;
font-weight: normal;
color: #F69B41;
text-decoration:none;
}
-->
</style>
<td width="400">
<div style="width: 0pt; height: 21px; overflow-x: visible; over