#header_t_id						{width:100%; height:100px; background:url(img/top_left_bg.jpg) no-repeat center top;}
.header_t							{width:1200px; margin:0px auto; padding-top:43px;}
.header_logo						{width:169px; float:left; } /*로고*/
.header_gnb							{width:505px; float:right; position:relative;}  /*네비게이션*/