详解一级导航的制作

}
#nav{
width: 500px;
height: 50px;
border: 1px solid red;
margin: 30px;
}
#nav ul{
list-style: none;
}
#nav ul li a{
width: 98px;
height: 50px;
float: left;
border: 1px solid red;
text-align: center;
line-height: 50px;
text-decoration: none;
}
#nav ul li a:hover{
background-color: #ABCDEF;
}