css之导航菜单的制作

通过设置<a>的背景改变样式，通过a:hover改变交互效果，改变文字颜色color

纵向

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>横向导航</title>
    <style>
        *{
            margin:0;
            padding: 0;
            font-size: 14px;
        }
        ul{
            list-style: none;
            width: 100px;
        }
         /*
        li{
            height: 30px;
            line-height: 30px;
            100px;
            background-color: dimgray;
            margin-top:1px;
            text-indent:10px; } /*padding-left:10px*/
        /*********************关键是将<a>标签变成块级元素**************/
       a{
           text-decoration: none;
           display: block;
           height: 30px;
           line-height: 30px;
           width:100px;
           background-color: dimgray;
           margin-top:1px;
           text-indent:15px;
       }
        a:hover{background-color: orangered;
            color: #000;}
    </style>
</head>
<body>
<ul>
    <li><a href="#">首页</a> </li>
    <li><a href="#">新闻资讯</a> </li>
    <li><a href="#">产品展示</a> </li>
    <li><a href="#">售后服务</a> </li>
    <li><a href="#">联系我们</a> </li>

</ul>
</body>
</html>

横向

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>横向导航</title>
    <style>
        *{
            margin:0;
            padding: 0;
            font-size: 14px;
        }
        ul{
            list-style: none;
          /*   100px;*/
        }
        /*
       li{
           height: 30px;
           line-height: 30px;
           100px;
           background-color: dimgray;
           margin-top:1px;
           text-indent:10px; } /*padding-left:10px*/
        /*********************关键是将<a>标签变成块级元素**************/
        li{
            float: left;
        }
        /*给li加上浮动*/
        a{
            text-decoration: none;
            display: block;
            height: 30px;
            line-height: 30px;
            width:100px;
            background-color: dimgray;
            margin-right:1px;
            /*text-indent:15px;*/
            text-align: center;
            color:navajowhite;
        }
        a:hover{background-color: orangered;
            color: #000;
        }
    </style>
</head>
<body>
<ul>
    <li><a href="#">首页</a> </li>
    <li><a href="#">新闻资讯</a> </li>
    <li><a href="#">产品展示</a> </li>
    <li><a href="#">售后服务</a> </li>
    <li><a href="#">联系我们</a> </li>

</ul>
</body>
</html>

美化

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>横向导航</title>
    <style>
        *{
            margin:0;
            padding: 0;
            font-size: 14px;
        }
        .nav{
            padding-left: 100px;
            height: 30px;
            margin-top:20px;
            border-bottom: 10px solid orange;
        }
        ul{
            list-style: none;

          /*   100px;*/
        }
        /*
       li{
           height: 30px;
           line-height: 30px;
           100px;
           background-color: dimgray;
           margin-top:1px;
           text-indent:10px; } /*padding-left:10px*/
        /*********************关键是将<a>标签变成块级元素**************/
        li{
            float: left;

        }
        /*给li加上浮动*/
        a{
            text-decoration: none;
            display: block;
            height: 30px;
            line-height: 30px;
            width:100px;
            background-color: lightgrey;
            margin-right:1px;
            color: black;
            /*text-indent:15px;*/
            text-align: center;
        }
        a:hover{background-color: orange;  color: #ffffff;
        }
    </style>
</head>
<body>
<div class="nav">
<ul>
    <li><a href="#">首页</a> </li>
    <li><a href="#">新闻资讯</a> </li>
    <li><a href="#">产品展示</a> </li>
    <li><a href="#">售后服务</a> </li>
    <li><a href="#">联系我们</a> </li>

</ul>
</div>
</body>
</html>