.filter()
HTML
<div class="tab_special">
<ul>
<li><a class="" href="#" >전체</a></li>
<li><a class="" href="#" ><strong>밥솥</strong><strong>밥<</strong></a></li>
<li><a class="" href="#" ><strong>전기레인지</strong></a></li>
<li><a class="" href="#" >유아가전</a></li>
<li><a class="hi" href="#" ><strong>생활가전</strong></a></li>
<li><a class="hi" href="#" >주방가전</a></li>
</ul>
</div>
CSS
.tab_special{width:990px; margin:0 auto 20px;}
.tab_special > ul{display:inline-block; width:100%; margin-bottom:50px;}
.tab_special > ul > li{float:left; width:110px; height:104px; text-align:center; display:block; position:relative; }
.tab_special > ul > li > a {display:block; width:110px; line-height:16px; padding-top:74px; font-size:16px; background: url(http://www.cuchen.com/images/sub/bg_tab_special.gif) no-repeat 0 0; color:black}
.tab_special > ul > li:nth-child(2) > a{background-position:-110px 0;}
.tab_special > ul > li:nth-child(3) > a{background-position:-220px 0;}
.tab_special > ul > li:nth-child(4) > a{background-position:-330px 0;}
.tab_special > ul > li:nth-child(5) > a{background-position:-440px 0;}
.tab_special > ul > li:nth-child(6) > a{background-position:-550px 0;}
.tab_special > ul > li:nth-child(7) > a{background-position:-660px 0;}
.tab_special > ul > li:nth-child(8) > a{background-position:-770px 0;}
.tab_special > ul > li:nth-child(9) > a{background-position:-880px 0;}
.tab_special > ul > li > a:hover, .tab_special > ul > li > a:focus, .tab_special > ul > li > a.on{background-position:0 -90px;}
.tab_special > ul > li:nth-child(2):hover > a, .tab_special > ul > li:nth-child(2) > a:focus, .tab_special > ul > li:nth-child(2) a.on{background-position:-110px -90px;}
.tab_special > ul > li:nth-child(3):hover > a, .tab_special > ul > li:nth-child(3) > a:focus, .tab_special > ul > li:nth-child(3) a.on{background-position:-220px -90px;}
.tab_special > ul > li:nth-child(4):hover > a, .tab_special > ul > li:nth-child(4) > a:focus, .tab_special > ul > li:nth-child(4) > a.on{background-position:-330px -90px;}
.tab_special > ul > li:nth-child(5):hover > a, .tab_special > ul > li:nth-child(5) > a:focus, .tab_special > ul > li:nth-child(5) > a.on{background-position:-440px -90px;}
.tab_special > ul > li:nth-child(6):hover > a, .tab_special > ul > li:nth-child(6) > a:focus, .tab_special > ul > li:nth-child(6) > a.on{background-position:-550px...
JavaScript
$(document).ready(function(){
$('li a').filter(':even').css('color','red');
$('li').filter(function(index){ // (li) 안에 (자기자신)
return $('strong', this).length == 2; // 단 하나의 <strong>태그만 가진 리스트를 찾아 ()
}).css('background-color','yellow'); // 하나의 결과 집합을 구성
});