#wrapper{ width:720px; --> 혹은 80% margin:0 auto; --> ie에서 안됨
body{ text-align: center; } #wrapper{ width: 720px; margin: 0 auto; text-align: left; }
#wrapper{ width: 720px; position: relative; left: 50%; margin-left: -360px; --> 720px / 2 }