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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>Document</title>
    <link rel="stylesheet" href="css/s1mple.css">
</head>

<body>
    <header>
        <img src="https://i.loli.net/2021/04/11/AIiXHCSt2mTUh4Q.gif" alt="163logo">
        <div class="nav">
            <a href="#">免费邮</a>
            <a href="#">企业邮</a>
            <a href="#">VIP邮</a>
            <a href="#">帮助</a>
        </div>
    </header>

    <section>
        <div class="box-left">
            <img src="https://i.loli.net/2021/04/11/cuiSzLCA4W29H3v.jpg" alt="imao">
            <div>
                <ul>
                    <li>163/126/yeah 三大免费邮箱均默认开放</li>
                    <li>全面支持 iPhone/ipad 及 Android 等系统</li>
                    <li>客户端、手机与网页，实现发送、阅读邮件立即同步普通登录手机号登录</li>
                </ul>
            </div>
        </div>
        <div class="box-right">
            <form action="#" method="get">
                <p>
                    <img src="https://i.loli.net/2021/04/11/It2uQJawORpSM5P.gif" alt="">
                    <span class="login-text">普通登录</span>
                </p>
                <p>
                    <label for="uesr">用户名</label>
                    <input type="text" name="user" id="uesr">@163.com
                </p>
                <p>
                    <label for="password">密码</label>
                    <input type="password" name="pass" id="pass">
                </p>
                <p>
                    <label for="version">版本</label>
                    <input type="text" name="version" id="version" list="list-version">
                    <datalist id="list-version">
                        <option value="1">默认</option>
                        <option value="2">企业邮</option>
                        <option value="3">VIP 邮</option>
                    </datalist>
                </p>
                <p>
                    <input type="checkbox" name="autologin" id="">自动登录
                    <input type="checkbox" name="ssl" id="">SSL
                </p>
                <p>
                    <input type="checkbox" value="登录">
                    <input type="checkbox" value="注册">
                </p>
            </form>
        </div>
    </section>
    <footer>
        <img class="bottom-left" src="https://i.loli.net/2021/04/11/aqwtBJKOkYyIZ5A.gif" alt="netease_logo">
        <span class="bottom-right">
            <a href="#">关于网易</a>
            <a href="#">免费邮</a>
            <a href="#">官方博客</a>
            <a href="#">客服服务</a>
            <a href="#">隐私政策</a>
            | 网易公司版权所有 1997-2011
        </span>
    </footer>
</body>

</html>

            
body {
    background-color: yellowgreen;
}

header,
section,
footer {
    width: 800px;
    border: 2px solid red;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 0px;
    padding-bottom: 0px;
    padding-left: 20px;
    padding-right: 20px;
}

header div.nav {
    float: right;
    border: 1px solid black;
    height: 60px;
    line-height: 60px;
}

section div.box-left {
    width: 360px;
    float: left;
}

section div.box-right {
    width: 360px;
    height: 320px;
    padding: 10px;
    border: 1px solid black;
    float: right;
}

.box-right p:nth-of-type(2),
.box-right p:nth-of-type(3),
.box-right p:nth-of-type(4) {
    margin-left: 40px;
}

datalist {
    width: 15px;
}

.box-right p:nth-child(5),
.box-right p:nth-child(6) {
    margin-left: 85px;
}

section,
footer {
    overflow: hidden;
    clear: both;
}

footer span.bottom-right {
    float: right;
    height: 40px;
    line-height: 40px;
}