*{ 
    margin:0; 
    padding:0; 
    list-style:none;
}
.lrtk{ 
    width:100%; 
    height:250px; 
    margin:0 auto; 
    overflow:hidden; 
    display:none; 
    background:url(../../../../../img/cbpia/topAd/big.jpg) no-repeat center top #7B010B; 
    text-align:center; 
    position:relative;
}
.lrtk .link{ 
    width:100%; 
    height:250px; 
    display:block; 
    z-index:10;
}
.lrtk .up{ 
    display:block; 
    width:120px; 
    height:12px; 
    background:url(../../../../../img/cbpia/topAd/arrow.jpg) no-repeat left bottom; 
    position:absolute; 
    left:50%; 
    bottom:0; 
    z-index:20; 
    margin-left:-60px;
}
.lrtk .down{ 
    display:block; 
    width:120px; 
    height:12px; 
    background:url(../../../../../img/cbpia/topAd/arrow.jpg) no-repeat left top; 
    position:absolute; 
    left:50%; 
    top:88px; 
    z-index:20; 
    margin-left:-60px;
}