百度一下首页制作（HTML+CSS）

部分代码展示：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>百度一下，你就知道</title>
    <style type="text/css">
        /*清除元素默认性质*/
        body { 
            margin: 0;
            padding: 0;
            list-style: none;
            text-decoration: none;
            font-size: 1;
            font-family: "宋体";
            background-color: white;
        }
 
        /*全部a元素的基础属性*/
        a {     
            color: #00c;
            text-decoration: none;
        }
        a:hover{
            color:red;
            text-decoration: underline;
        }
 
        /*顶部的行*/
        #topline {  
            text-align: right;
            font-size:20px;
            margin:10px 10px;
        }
 
        /*百度图标*/
        #logo {  
            margin-top: 10px;
            text-align: center;
        }
 
        /*百度应用*/
        #apps {  
            margin-top: 20px;
            text-align: center;
            font-size: 30px;
            font-weight: bold;
        }
 
        /*搜索*/
        #search {
            margin-top: 20px;
            text-align: center;
        }
        #search #enter{  /*搜索内容*/
            width:600px;
            height:30px;
            font-size: 20px;
            font-weight: 400;
            vertical-align: middle;
            border: 1px solid black;
            border-radius: 10px 10px 10px 10px;
        }
        #search #submit{  /*搜索按钮*/
            width:100px;
            height:37px;
            font-size: 20px;
            font-weight: 500; 
            vertical-align: middle;
            cursor: pointer;
            color: white;
            background-color:#3836E0;
            border: 1px solid black;
            border-radius: 10px 10px 10px 10px;
        }
 
        /*热搜*/
        #hotnews #title {margin-top: 50px;}
        #hotnews #title a{
            font-size: 20px;
            font-family: Arial Bold;
            font-weight: 900;
            color:black;
            margin-left: 485px;
        }
        #hotnews #hotlist{
            display: flex;
            justify-content: center;
        }
        #hotnews #hotlist ul {
            padding-top: 5px;
            width: 280px;
            display: inline-block;
        }
        #hotnews #hotlist li{
            height: 36px;
            line-height: 36px;
            font-size: 20px;
            text-align: left;
        }
        #hotnews #hotlist a{
            height: 36px;
            line-height: 36px;
            font-size: 20px;
            padding-left: 20px;
        }
        #hotnews ul{list-style-type:none;}
        #hotnews #top3{font-weight: bold;}
        #hotnews #top3 #one,#hotnews #top3 #one a{color: #cc061d;}
        #hotnews #top3 #two,#hotnews #top3 #two a{color: rgb(240, 105, 15);}
        #hotnews #top3 #three,#hotnews #top3 #three a{color: #f0a923;}
        #hotnews #else ul li,#hotnews #else ul li a{color:#72747d}
 
        /*底部的行*/
        #bottomline{
            margin-top: 240px;
            position: absolute;
            left: 50%;    
            transform: translateX(-50%); 
        }
    </style>
</head>
<body>
    <div id="topline">
        <a href="https://www.baidu.com/gaoji/advanced.html">设置</a>
        |
        <a href="https://passport.baidu.com/">登录</a>
    </div>
    <div id="logo">
        <a href="https://www.baidu.com/" target="_blank"><img src="https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png" title="点此进入百度官网" width="370" height="180"></a>
    </div>
    <div id="apps">
        <a href="http://news.baidu.com/" target="_blank">新闻</a>
        <a href="https://map.baidu.com/" target="_blank">地图</a>
        <a href="http://image.baidu.com/" target="_blank">图片</a>
        <a href="https://haokan.baidu.com/" target="_blank">视频</a>
        <a href="http://tieba.baidu.com/" target="_blank">贴吧</a>
        <a href="https://wenku.baidu.com/" target="_blank">文库</a>
        <a href="https://baike.baidu.com/" target="_blank">百科</a>
        <a href="https://www.baidu.com/more/" target="_blank">更多>></a>
    </div>
    <div id="search">
        <input id="enter" type="text" maxlength="25" value="最多输入20个字"/>
        <input id="submit" type="submit" value="百度一下"/>
    </div>
    <div id="hotnews">
        <div id="title">
            <a href="https://top.baidu.com/" target="_blank">百度热搜></a>
        </div>

界面展示：