ช่วยดูการสร้าง div css ให้ยืดตามเนื้อหาให้หน่อยครับ

	<div id="main" class="conner shadow">
    	<div id="box_top">
        	<div id="top_left">LOGO</div>
            <div id="top_right">bbbbbbbbbbbbbbbbbb</div>
        </div>
        
        <div id="box_menu">

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

a{text-decoration:none;}
img{border:none;}
body{
	font-size:13px;
	font-family:Tahoma;Verdana,Arial,sans-serif;
	background:url(../images/bg-page.jpg) repeat-x top fixed ;
	height:auto;
}

#main {
	background:#FFFFFF;
	border:#CCCCCC solid 1px;
	/*position: relative;*/
	width: 1000px;
	height:auto;
	/*padding: 0 10px;*/
	margin: 0 auto;
	margin-bottom:10px;
	z-index: 3;
	
	-webkit-box-shadow: 0px 0px 6px rgba(0,0,0,.5);
	-moz-box-shadow: 0px 0px 6px rgba(0,0,0,.6);
	box-shadow: 0px 0px 6px rgba(0,0,0,.6);
}

#box_top {
	width:950px;
	height:160px;
	float:left;
	padding:0px 30px 0px 10px;
	border:#00F solid 1px;
}

#top_left{
	width:500px;
	height:120px;
	float:left;
	padding-top:15px;
}
#top_right{
	width:215px;
	height:120px;
	float:right;
	padding-top:15px;
}

#box_menu {	
	width:100%;
	height:50px;
	float:left;
	/*padding:0px 30px 0px 20px;*/
	/*border:#FF0000 solid 1px;*/
}


.conner{
	-moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    -khtml-border-radius: 5px;
	-o-border-radius: 5px;
    border-radius: 5px;
}

.clearfix{clear:both;}