#global_search_btn{background:url(images/sousuo.png) no-repeat;width: 13px;
    height: 13px;
    margin-top: 8px;}
.form-group select option:first-child{display:none!important;}
.form-group select option:nth-child(2){display:none!important;}
.form-group select option:nth-child(4){display:none!important;}
.form-group select option:nth-child(5){display:none!important;}
