CSS滤镜:颜色渐变[微软的方法]
<table cellpadding="0" cellspacing="0" width="100%" height="22" border="0">
<tr>
<td id="msviRegionIdGraphic" bgcolor="#FFFFFF"></td>
<td id="msviRegionGradient1" width="50%" style="filter:progid:DXImageTransform.Microsoft.Gradient(startColorStr='#FFFFFF', endColorStr='#98B2E6', gradientType='1')"></td>
<td id="msviRegionGradient2" width="50%" style="filter:progid:DXImageTransform.Microsoft.Gradient(startColorStr='#98B2E6', endColorStr='#3568CC', gradientType='1')"></td>
</tr>
</table>
