#content_case_bottom{
	width:100%;

	z-index:3;
	height:0px;
	border-bottom:1px solid #12b7f5;

}
.float_1{position:relative;width:1000px;margin:0 auto;}
.pro_tab_c {padding:0; position: absolute; top:-34px; left:0;

}
.pro_tab_c a{width:130px; height:35px; display: block; color:#fff; line-height:35px; text-align:center; font-weight:bold; font-size:14px; font-family: "微软雅黑", sans-serif;}
#tab_btn_1{
	background: url(img/tab001on.gif); margin-left:10px;
	color: #333;
}
#tab_btn_2{ background:url(img/tab002.gif);} 
#tab_btn_3{ background:url(img/tab002.gif);} 
#tab_btn_4{ background:url(img/tab002.gif);} 
#tab_btn_5{ background:url(img/tab002.gif);} 
#tab_btn_6{ background:url(img/tab002.gif);}  
#tab2_btn_1{
	background: url(img/tab001on.gif); margin-left:10px;
	color: #333;
}
#tab2_btn_2{ background:url(img/tab002.gif);} 
#tab2_btn_3{ background:url(img/tab002.gif);} 
#tab2_btn_4{ background:url(img/tab002.gif);} 
#tab3_btn_1{
	background: url(img/tab001on.gif); margin-left:10px;
	color: #333;
}
#tab3_btn_2{ background:url(img/tab002.gif);} 
#tab3_btn_3{ background:url(img/tab002.gif);} 
#tab3_btn_4{ background:url(img/tab002.gif);} 
#tab4_btn_1{
	background: url(img/tab001on.gif); margin-left:10px;
	color: #333;
}
#tab4_btn_2{ background:url(img/tab002.gif);} 
#tab4_btn_3{ background:url(img/tab002.gif);}
#tab5_btn_1{
	background: url(img/tab001on.gif); margin-left:10px;
	color: #333;
}
#tab5_btn_2{ background:url(img/tab002.gif);} 
#tab5_btn_3{ background:url(img/tab002.gif);} 
#tab5_btn_4{ background:url(img/tab002.gif);}  
.pro_tab_c ul {
	margin: 0px; padding: 0px;
}
.pro_tab_c ul li {
	margin: 0px 5px 0px 0px;
	float: left;
}
#clear_div {
	height: 0px; clear: both;
}