html


doctype html>
<html>

    <head>
        <meta charset="utf-8">
        <title>myweb006_title>
        <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
    <style>
        body,ul,li,a{
            margin:0px;
            padding:0px;
            list-style:none;
            text-decoration:none;
        }
        body{
            background: #f4f4f4;
            }
            </*头部内容 */>
        header{
            width:100%;
            height:60px;
            background: #fff;
            box-shadow:0px 0px 5px 5px #ccc;
            margin-bootom:20px;
        }
        .top{
            width:60%;
            height:60px;
            /* border: 1px solid blue; */
            margin:0px auto;
            display:flex;
            justify-content:space-between;
        }
        /*
        .top>section{
            border:1px solid red;
        }
        */
        .top_left{
            flex-grow:1;
            /* border:1px solid red; */
        }
        .top_left>img{
            height: 50px;
        }
        
        .top_center{
            flex-grow:5;
            /* border:1px solid green; */
        }
        .top_center>ul{
             height: 60px; 
             display: flex;  /*水平 */
            justify-content: space-between;
            align-items: center;
        }
/*         .top_center>ul>li{
            border: 1px solid red;
        } */
        .top_center>ul>li>a,.top_right>ul>li>a{
            font-size: 14px;
            font-family: "微软雅黑";
            color: rgba(31,45,61,0.5);
            font-weight: bold;
        }
        
        .top_right{
            flex-grow:2;
            /* border:1px solid #000; */
        }
        .top_right>ul{
            height: 60px;
            
            display: flex;
            justify-content: space-around;
            align-items: center;
            
            
        }
            /*航部分 */
            nav{
                width:60%;
                height:80px;
            /*order:1px solid blue;*/
                margin:0px auto;
                box-shadow:0px 5px 5px #ccc;
                background:#fff;
                border-radius:10px;
                margin:0px auto;
                magrin-bottom:20px;
            }
            /*内容部分*/
            #content{
                width:60%;
                height:auto;
                border:1px solid blue;
                margin:0px auto 20px;
            }
            
            .content{
                width:100%;
                display:flex;
                justify-content:space-between;
                margin-bottom: 50px;
            }
            .content>section{
                width:23%;
                height:200px;
                border:1px solid green;
            }
            /* 分页部分 */
            #page{
                width: 60%;
                margin: 0px auto 20px;
                border: 1px solid blue;
                display: flex;
                justify-content: center;
            }
            #page>article{
                border: 1px solid red;
                padding: 7px 15px;
                margin-left: 15px;
            }
          /* 底部内容 */
          footer{
              width: 100%;
              background: #fff;
              height: 370px;
              /* border: 1px solid black; */
          }
          .footer{
              width: 60%;
              height: 350px;
              border: 1px solid blue;
              margin: 0px auto;
              
              display: flex;
              justify-content: space-between;
          }
          .footer_left{
              flex-grow: 3;
              border: 1px solid red;
              
          }
          
          .footer_center{
              flex-grow: 5;
              border: 1px solid blue;
          }
          
          .footer_right{
              flex-grow: 1;
              border: 1px solid green;
          }
          
          .footer_bottom{
              width: 60%;
              height: 20px;
              margin: 0px auto;
              text-align: center;
          }
            
    style>
    head>

    <body>
        

        <header>
            <section class="top">
                <section class="top_left"><img src="img/logo2.png">section>
                
                <section class="top_center">
                    <ul>
                        <li><a href="#">更多课程a>li>
                        <li><a href="#">猿生态a>li>
                        <li><a href="#">猿著a>li>
                        
                        <li><a href="#">猿创a>li>
                        <li><a href="#">猿材料a>li>
                        <li><a href="#">猿工手册a>li>
                        
                        <li><a href="#">猿代码a>li>
                        <li><a href="#">猿圈a>li>
                        <li><a href="#">猿来如此a>li>
                    ul>
                section>
                
                <section class="top_right">
                    <ul>
                        <li><a href="#">注册a>li>
                        <li><a href="#">登录a>li>
                    ul>
                    section>
            section>
        header>
            
            <nav>nav>
            
            
            <section id="content">
            <section class="content">
                <section>1section>
                <section>2section>
                <section>3section>
                <section>4section>
            section>
            
            <section class="content">
                <section>1section>
                <section>2section>
                <section>3section>
                <section>4section>
            section>
            
            <section class="content">
                <section>1section>
                <section>2section>
                <section>3section>
                <section>4section>
                
            section>
            section>
          
          <section id="page">
              <article><a href="#">1a>article>
              <article><a href="#">2a>article>
              <article><a href="#">3a>article>
              <article><a href="#">4a>article>
              <article><a href="#">5a>article>
              <article><a href="#">6a>article>
          section>
          
        
        
          
        
        <footer>
        <section class="footer">
            <section class="footer_left">3section>
            <section class="footer_center">5section>
            <section class="footer_right">1section>
        section>
        
            <section class="footer_bottom">学院section>
        footer>
        
    body>
html>