ul在div中居中显示:
.nav{ text-align:center; }
.nav ul{ display:inline-block; height:15px; vertical-align:top;}
.nav ul li{display:inline-block; }
ul在div中居中显示:
.nav{ text-align:center; }
.nav ul{ display:inline-block; height:15px; vertical-align:top;}
.nav ul li{display:inline-block; }