****HTML部分*****
table{ color:#FFFFFF; background-color:#069} /*青*/
#container { width: 100%; float: right; margin-left: -180px; }
#main { position: relative; margin: 0px 30px 0px 210px; padding: 10px 0px; background-color:#FC0} /*黄色*/
#sub { width: 180px; float: left; background-color:#093} /* 緑 */

****CSS部分*****
<div id="container">
<div id="main">

<table width="100%">
<tr>
<td>test</td>
</tr>
</table>

</div><!--end of main-->
</div><!-- end of container-->

<div id="sub">
menu
</div><!--end of sub-->