.cusSelect{
    width:280px;
    height: 30px;
    line-height:30px;
    border: 1px solid #3479c6;
    background: url("../images/arr_down.jpg") no-repeat right center #ffffff;
    position:relative;
    cursor:pointer;
    display: inline-block;
    _zoom: 1;
    _display: inline;
    margin-right: 24px;
    margin-top: 30px;
}

.cusSelect:last-child{
    margin-right: 0;
}

.cusTitle{
    width:185px;
    height: 100%;
    font-size:16px;
    color:#333333;
    line-height:inherit;
    position:relative;
    cursor:pointer;
    overflow:hidden;
    text-overflow:ellipsis;
    padding-left: 7px;
}

.cusOpSet{
    font-size: 16px;
    min-width:100%;
    max-height:322px;
    list-style:none;
    padding: 0;
    margin:0;
    border:1px solid #ccc;
    position:absolute;
    left:0;
    overflow-y:auto;
    background-color:#fff;
    z-index:100;
}

.cusOpSet li{
    width:auto;
    line-height:inherit;
    font-size:inherit;
    background-color:inherit;
    padding:0;
    white-space: nowrap;
}

.cusOpSet li a{
    text-decoration:none;
    color:inherit;
    display:block;
    padding:0 10px;
}

.cusOpSet li:hover{
    background-color:#3479c6;
    color:#fff;
}

.show{
    display:block;
}