메뉴바 가운데 정렬 어찌할까요 채택완료

/* 레이아웃 크기 지정 */
#hd, #wrapper, #ft{min-width:1000px}

#hd_pop,
#hd_wrapper,
#tnb ul,
#gnb .gnb_wrap,
#container_wr,
#ft_wr{width:1000px}

/* 팝업레이어 */
#hd_pop {z-index:1000;position:relative;margin:0 auto;height:0}
#hd_pop h2 {position:absolute;font-size:0;line-height:0;overflow:hidden}
.hd_pops {position:absolute;border:1px solid #e9e9e9;background:#fff;}
.hd_pops img{max-width:100%}
.hd_pops_con {}
.hd_pops_footer {padding: 0;background:#000;color:#fff;text-align:left;position:relative;}
.hd_pops_footer:after {display:block;visibility:hidden;clear:both;content:""}
.hd_pops_footer button {padding: 10px;border:0;color:#fff}
.hd_pops_footer .hd_pops_reject{background:#000;text-align:left}
.hd_pops_footer .hd_pops_close{background:#393939;position:absolute;top:0;right:0}

/* 상단 레이아웃 */
#hd {border-top:2px solid #253dbe}
#hd_h1 {position:absolute;font-size:0;line-height:0;overflow:hidden}

#hd_wrapper {position:relative;margin:0 auto;padding:10px 0;height:115px;zoom:1}
#hd_wrapper:after {display:block;visibility:hidden;clear:both;content:""}

#logo {float:left;padding:30px 0 0}

.hd_sch_wr{position:absolute;top:25px;left:50%;width:430px;margin-left:-215px;}
#hd_sch h3 {position:absolute;font-size:0;line-height:0;overflow:hidden}
#hd_sch{border:2px solid #556ada;background:#fff;border-radius:5px;overflow:hidden}
#hd_sch #sch_stx {padding-left:10px;height:40px;width:376px;border:0;border-right:0;float:left;font-size:1.25em}
#hd_sch #sch_submit {height:40px;border:0;background:#fff;color:#253dbe;width:50px;float:left;cursor:pointer;font-size:18px}

#sbn_side{position:absolute;top:20px;right:0}

#tnb {border-bottom:1px solid #ddd;background:#fff}
#tnb h3 {position:absolute;font-size:0;line-height:0;overflow:hidden}
#tnb ul {margin:0 auto;zoom:1}
#tnb ul:after {display:block;visibility:hidden;clear:both;content:""}
#tnb li {float:right;border-left:1px solid #ddd;margin-bottom:-1px;font-size:0.92em}
#tnb a {display:inline-block;padding:0 10px;color:#646464;line-height:35px}
#tnb a:focus, #tnb a:hover {color:#253dbe;background:#fafafa}
#tnb .tnb_admin a{color:#ff0000;}
#tnb .tnb_left{float:left}
#tnb .tnb_left a{padding:0 14px}
#tnb .tnb_cart{border-right:1px solid #ddd;}
#tnb .tnb_community{border-right:1px solid #ddd}
#tnb .tnb_community i{font-size:15px}
#tnb .tnb_community{background:#e7e7e7;font-weight:bold;}
#tnb .tnb_community:focus, #tnb .tnb_community:hover {color:#333;border-bottom:0}
#tnb .tnb_community a{color:#253dbe;border-bottom:1px solid #e7e7e7}

#hd_qnb{float:right;margin-top:20px}
#hd_qnb:after {display:block;visibility:hidden;clear:both;content:""}
#hd_qnb li{float:left;font-size:1.083em;line-height:15px;position:relative;text-align:center;margin:0 10px}
#hd_qnb li span {display:block;margin-top:5px;font-size:0.92em}
#hd_qnb li a{display:block}
#hd_qnb li i{display:inline-block;width:40px;line-height:40px;border-radius:25px;background:#fff;text-align:center;margin:0;color:#fff}
#hd_qnb .visit .visit-num{display:inline-block;line-height:18px;padding:0 5px;border-radius:10px;background:#f04e00;color:#fff;font-size:10px;position:absolute;top:0;right:0}
#hd_qnb li .fa-question{background:#e83a5f;font-size:20px}
#hd_qnb li .fa-question:hover{background:#e41b45}
#hd_qnb li .fa-comments{background:#82c13f;font-size:16px}
#hd_qnb li .fa-comments:hover{background:#5aa708}
#hd_qnb li .fa-users{background:#f0ba00;font-size:15px}
#hd_qnb li .fa-users:hover{background:#f06f00}
#hd_qnb li .fa-history{background:#8522c4;font-size:15px}
#hd_qnb li .fa-history:hover{background:#6700a9}

/* 메인메뉴 */
#gnb{position:relative}
#gnb h2{position:absolute;font-size:0;line-height:0;overflow:hidden}
#gnb .gnb_wrap{margin:0 auto;position:relative}
#gnb #gnb_1dul {font-size:1.083em;padding: 0;background:#253dbe;zoom:1;
-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.3);
-moz-box-shadow:  0 1px 3px rgba(0,0,0,0.3);
box-shadow: 0 1px 3px rgba(0,0,0,0.3)}
#gnb ul:after {display:block;visibility:hidden;clear:both;content:""}
#gnb .gnb_1dli{float:left;line-height:50px;padding:0 15px;position:relative;}
#gnb .gnb_1dli:hover{background:#1a30a7;
-webkit-transition: background-color 2s ease-out;
-moz-transition: background-color 0.3s ease-out;
-o-transition: background-color 0.3s ease-out;
transition: background-color 0.3s ease-out;}

.gnb_1dli .bg{display:inline-block;width:10px;height:10px;overflow:hidden;background:url(../img/gnb_bg2.gif) no-repeat 50% 50%;text-indent:-999px}
.gnb_1da {display:inline-block;font-weight:bold;color:#fff;text-decoration:none;}
.gnb_2dli{border-top:1px solid #253dbe}
.gnb_2dli:first-child{border:0}
.gnb_2dul {display:none;position:absolute;top:50px;min-width:140px;background:#1a30a7;padding: 0;
-webkit-box-shadow: 0 1px 5px rgba(0,0,0,0.1);
-moz-box-shadow:  0 1px 5px rgba(0,0,0,0.1);
box-shadow: 0 1px 5px rgba(0,0,0,0.1);}
.gnb_2da {display:block;padding:0 10px;line-height:40px;color:#c3cbf7;text-align:left;text-decoration:none}
a.gnb_2da:hover{background:#0e2080;
-moz-transition: all 0.3s ease-out;
-o-transition: all 0.3s ease-out;
transition: all 0.3s ease-out;}

.gnb_1dli_air .gnb_2da {}
.gnb_1dli_on .gnb_2da {}
.gnb_2da:focus, .gnb_2da:hover {color:#fff}
.gnb_1dli_over .gnb_2dul {display:block;left:0}
.gnb_1dli_over2 .gnb_2dul {display:block;right:0}
.gnb_wrap .gnb_empty {padding:10px 0;width:100%;text-align:center;line-height:2em;color:#fff}
.gnb_wrap .gnb_empty a{color:#fff;text-decoration:underline}
.gnb_wrap .gnb_al_ul .gnb_empty, .gnb_wrap .gnb_al_ul .gnb_empty a{color:#555}

#gnb .gnb_menu_btn{background:#4158d1;color:#fff;width:50px;height:50px;border:0;vertical-align:top;font-size:18px}
#gnb .gnb_close_btn{background:#4158d1;color:#fff;width:50px;height:50px;border:0;vertical-align:top;font-size:18px;position:absolute;top:-50px;left:0}
#gnb .gnb_mnal{padding:0}

#gnb_all{display:none;position:absolute;width:100%;z-index:99;}
#gnb_all .gnb_al_ul:after {display:block;visibility:hidden;clear:both;content:""}
#gnb_all .gnb_al_ul{background:#fff;border:1px solid #4158d1;padding:20px;
-webkit-box-shadow: 0 2px 5px rgba(0,0,0,0.2);
-moz-box-shadow:  0 2px 5px rgba(0,0,0,0.2);
box-shadow: 0 2px 5px rgba(0,0,0,0.2);}
#gnb_all .gnb_al_li{background:#fff;float:left;min-width:20%;padding:5px }
#gnb_all .gnb_al_li .gnb_al_a{font-size:1.083em;padding:10px;display:block;position:relative;margin-bottom:10px;background: #eff1f9;border-bottom: 1px solid #dee2f1;font-weight: bold;color:#243071}
#gnb_all .gnb_al_li li {padding-left:10px;line-height:2em}
#gnb_all .gnb_al_li li i{color:#9ca6cc}
#gnb_all .gnb_al_li li a{color:#555}

그누보드 5.3.2.6 버젼입니다.

메뉴스킨을 다운받아 사이즈를 줄이니 메뉴바가 왼쪽으로 정렬이 되는데

이걸 가운데로 정렬 하고 싶은데 능력이 안돼 도움을 받고 싶네요.

왕 초보 입니다.