导航条2-

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程</title>
<style>

nav{

height:35px;

1200px;

}

ul
{
    list-style-type:none;
    margin:0;
    padding:0;
    overflow:hidden;
}
li
{
    float:left;
}
a:link,a:visited
{
    display:block;
    120px;
    font-weight:bold;
    color:#FFFFFF;
    background-color:#98bf21;
    text-align:center;
    padding:4px;
    text-decoration:none;
    text-transform:uppercase;
}
a:hover,a:active
{
    background-color:#7A991A;
}

</style>
</head>

<body>

<nav>
<ul>
<li><a href="#home">Home</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#home">Home</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
<li><a href="#home">Home</a></li>

</ul>

</nav>
</body>
</html>