老师检查一下，有哪些地方需要优化的

来源：3-17 编程练习

Javed

2021-04-29 15:38:30

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        /* 在此处补充代码*/

        * {
            margin: 0;
            padding: 0;
        }

        header {
            width: 100%;
            margin: 0px auto;
            display: flex;
            background-color: black;
            justify-content: space-around;
            align-items: center;
        }

        .img {
            vertical-align: middle;
        }

        .nav {
            width: 700px;
        }

        li {
            color: white;
            list-style: none;
        }

        .btn {
            background-color: orange;
            width: 120px;
            height: 50px;
            border: 1px solid orange;
            border-radius: 8px;
            color: white;
            text-align: center;
            line-height: 50px;
            font-size: 20px;
            font-weight: bold;
        }

        input {
            border: 1px solid orange;
            background-color: orange;
            color: white;
            width: 70px;
            height: 40px;
            border-radius: 7%;
            margin-right: 10px;
        }

        header .logo,
        header .nav,
        header .login {
            display: flex;
            align-items: center;
            justify-content: space-around;
        }

        section {
            padding-top: 15px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
        }

        section .section {
            display: flex;
            justify-content: space-around;
            background-color: rgb(104, 196, 224);
            width: 40%;
            height: 150px;
            border: 1px solid rgb(104, 196, 224);
            border-radius: 5px;
            margin-bottom: 20px;
        }

        section .section .box {
            display: flex;
            flex-direction: column;
            justify-content: space-around;
            font-size: 25px;
        }

        section .section .shopping {
            display: flex;
            flex-direction: column;
            justify-content: space-around;
        }
    </style>
</head>

<body>
    <!-- 头部 -->
    <header>
        <div class="logo">
            <img src="http://climg.mukewang.com/59197ab000014f1503000100.jpg" alt="">
        </div>
        <ul class="nav">
            <li>课程</li>
            <li>路径</li>
            <li>猿问</li>
            <li>手记</li>
        </ul>
        <div class="login">
            <input type="button" value="登录">
            <input type="button" value="注册">
        </div>
    </header>
    <!-- 主体内容 -->
    <section>
        <div class="section">
            <div class="box">
                <p>《前端小白入门手册》</p>
                <div>适用人群：没有任何前端基础的小白</div>
                <div>费用：￥499</div>
            </div>
            <div class="shopping">
                <div class="btn">加入购物车</div>
            </div>
        </div>
        <div class="section">
            <div class="box">
                <p>《HTML5月CSS3实现动态网页》</p>
                <div>适用人群：有html和css基础的童鞋</div>
                <div>费用：￥599</div>
            </div>
            <div class="shopping">
                <div class="btn">加入购物车</div>
            </div>
        </div>
        <div class="section">
            <div class="box">
                <p>《前端小白入门手册》</p>
                <div>适用人群：没有任何前端基础的小白</div>
                <div>费用：￥499</div>
            </div>
            <div class="shopping">
                <div class="btn">加入购物车</div>
            </div>
        </div>
        <div class="section">
            <div class="box">
                <p>《HTML5月CSS3实现动态网页》</p>
                <div>适用人群：有html和css基础的童鞋</div>
                <div>费用：￥599</div>
            </div>
            <div class="shopping">
                <div class="btn">加入购物车</div>
            </div>
        </div>
    </section>
</body>

</html>