CSS代碼如下：

.nav{height: 40px;}
.nav_left{width:10px;background: url(../img/nav_left.jpg) no-repeat;float: left;height: 40px;}

.nav_mid{width:980px;background: url(../img/nav_bg.jpg)repeat-x;float: left;}
.nav_right{width: 10px;background: url(../img/nav_right.jpg)no-repeat;float: left;height: 40px;
}
}
.nav_mid li {
?? ?float: left;
?? ?list-style-type: none;
?? ?width: 100px;
?? ?font-family: "微軟雅黑";
?? ?text-align: center;
}