IE에서 중앙정렬(?)이 안먹혀요 채택완료

#main_header {width: 1000px;height:100px;margin: 0 auto;position: relative}


#title { position: absolute; left: 10px; top: 10px; }
#title img { height: 80px; }
#hd_button { position: absolute; width: 80px; right: 0; top: 0; }
#hd_button .trb { float: right; width: 35px; margin: 10px 0 0 10px; }
#hd_button .tlb { float: right; width: 35px; height: 35px; margin: 10px 0 0 0; }
#hd_button .brb { float: right; width: 35px; height: 35px; margin: 10px 0 0 10px; }
#hd_button .blb { float: right; width: 35px; height: 35px; margin: 10px 0 0 0; }