.bg_contents, .bg_contents * {text-indent:-9999em}
.bg_contents * {display:inline-block}
#contentsMain article {padding-top:161px}

article section {margin-top:30px;padding-bottom:40px}
article #gallery_view {float:left;width:674;height:507px}
article ul {float:right;width:126px}
article ul li {border-bottom:1px solid #b6c6d3}
article ul li a {display:block;height:33px;background:url('/img/page/6/6_4_tab.png') no-repeat #1765a5;text-indent:-9999em}
article ul li:nth-child(1) a {background-position:right 0}
article ul li:nth-child(2) a {background-position:right -34px}
article ul li:nth-child(3) a {background-position:right -68px}
article ul li:nth-child(4) a {background-position:right -102px}
article ul li:nth-child(5) a {background-position:right -136px}
article ul li:nth-child(6) a {background-position:right -170px}
article ul li:nth-child(7) a {background-position:right -204px}
article ul li:nth-child(8) a {background-position:right -238px}
article ul li:nth-child(9) a {background-position:right -272px}
article ul li:nth-child(10) a {background-position:right -306px}
article ul li:nth-child(11) a {background-position:right -340px}
article ul li:nth-child(12) a {background-position:right -374px}
article ul li:nth-child(13) a {background-position:right -408px}
article ul li:nth-child(14) a {background-position:right -442px}
article ul li:nth-child(15) {border-bottom:0}
article ul li:nth-child(15) a {background-position:right -476px;height:32px}
article ul li a.on {background-position-x:left;background-color:#b6c6d3}

article section:after {clear:both;content:'';display:block}