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console 命令行工具 X clear

                    
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console
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>华为商城</title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
    <!--页眉小导航-->
    <div class="header">
        <div class="container">
        <div class="left">
            <ul>
                <li><a href="#">首页</a></li>
                <li><span>|</span><a href="#">华为官网</a></li>
                <li><span>|</span><a href="#">花粉俱乐部</a></li>
                <li><span>|</span><a href="#">V码</a></li>
                <li><span>|</span><a href="#">企业购</a></li>
                <li><span>|</span><a href="#">Select Region</a></li>
                <li><span>|</span><a href="#">更多精彩</a></li>
            </ul>
        </div>

        <div class="right">
            <ul>
                <li><a href="#">登录&nbsp&nbsp&nbsp</a></li>
                <li><a href="#">注册</a></li>
                <li><span>|</span><a href="#">我的订单</a></li>
                <li><span>|</span><a href="#">客服</a></li>
                <li><span>|</span><a href="#">网站导航</a></li>
                <li><span>|</span><a href="#">手机版</a></li>
                <li><span>|</span><a href="#">购物车</a></li>
            </ul>
        </div>
        </div>
    </div>


    <!--主页大导航-->
    <div class="nav">
        <div class="container">
            <a class="logo" href="#"><h1><img src=https://p9-tt.bytecdn.cn/large/tos-cn-i-0000/955ab4af9371432bb0f4412732f8e9d0></h1></a>
            <ul>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
                <li><a href="#">华为会场</a></li>
            </ul>
            <a class="search" href="#"><img src="https://tse1-mm.cn.bing.net/th/id/R-C.4091645d13ed073799739c56aee3909c?rik=rVXfwkJV174lcQ&riu=http%3a%2f%2fbpic.588ku.com%2felement_pic%2f01%2f37%2f09%2f07573c3a6d2c4d5.jpg&ehk=Ps5amyRppqdyX3Qk%2fo1616iGwuOSISWaCEm8Dgq%2b7rk%3d&risl=&pid=ImgRaw&r=0" alt="search"></a>
        </div>
    </div>

    <!--轮播图与导航-->
    <div class="banner">
        <div class="container">
        <div class="subnav">
            <ul>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
                <li><a href="#">手机</a></li>
            </ul>
        </div>
        </div>
    </div>
</body>
</html>
*{
    padding: 0;
    margin: 0;
}
ul{
    list-style:none;
}
a{
    text-decoration: none;
}
.container{
    width: 1200px;
    margin:0 auto;
}
.header{
    height: 36px;
    background-color: rgb(0,0,0);
}
.header .container{
    display: flex;
    align-items: stretch;
    justify-content: space-between;
}
.header ul{
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 36px;
}
.header ul li{
    
}
.header ul li span{
    color:rgb(59, 59, 59);
    margin: 0px 5px;
}
.header ul li a{
    color: grey;
    font-size: 12px;
}
.header ul li a:hover{
    color:white;
}

.nav{
    height: 74px;  
}
.nav .container{
    display: flex;
    align-items: center;
    justify-content: space-evenly;
}
.nav .logo img{
    height: 103px;
    
}
.nav ul{
    display: flex;
    margin: 0px 35px;
}
.nav ul li{
    
}
.nav ul li a{
    color: black;
    margin-left: 25px;
}
.nav ul li a:hover{
    color:rgb(182, 0, 0);
}
.nav .search img{
    height: 26px;
    width: 26px;
}

.banner{
    float: left;
    margin-top: 29px;
    height: 526px;
    width: 1520px;
    background: url(https://res.vmallres.com/uomcdn/CN/cms/202202/151B84F4E02965473B00F3C92A4335FB.jpg.webp);
}
.banner .container{
    margin:0 auto;
}
.subnav{
    float: left;
    width: 200px;
    height: 496px;
    background-color: rgb(255, 255, 255,0.9);
    margin-top: 15px;
}
.subnav ul{
    margin-top: 8px;
}
.subnav ul li{
    height: 40px;
    line-height: 40px;
    margin-left: 15px;
}
.subnav ul li a{
    color:grey;
}
.subnav ul li:hover{
    background-color: #fff;
}
.subnav ul li a:hover{
    color:black;
}