.nav li{position:relative; }
.nav li ul{display:none;  position:absolute; width:150px; left:-30px; padding-left:20px }
.nav li:hover ul{display:block;background-color:#fff; border-radius:5px; border-bottom:1px solid #a9a9a9; border-top:1px solid #e7e7e7; margin-bottom:20px}
.nav li:hover ul li{ margin:20px 0}
.nav li:hover ul li a:hover{text-decoration:none}


/* ¸ÞÀÎ > ÀÎÆ®·Î*/
/*

section#about{padding:105px 0 100px 0;}
.intro_txt{padding-top:0; }
.intro_txt h2 p{ margin-bottom:0}
.intro_ul{}
.intro_ul li{ float:left; list-style:none; margin:90px 0 0 37px}
.intro_ul li:last-child{margin-right:0}

*/