table固定表头，HTML代码在线实时编辑、实时预览

            
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            <!DOCTYPE html>
<html>
<head>
<style>
.table-container {
    height: 300px;
    overflow-y: auto;
    border: 1px solid #ddd;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f2f2f2;
    position: sticky;
    top: 0;
    z-index: 10;
}

/* 确保表头在滚动时保持可见 */
thead th {
    background-color: #f2f2f2;
}
</style>
</head>
<body>

<div class="table-container">
    <table>
        <thead>
            <tr>
                <th>姓名</th>
                <th>年龄</th>
                <th>城市</th>
                <th>职业</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>张三</td>
                <td>25</td>
                <td>北京</td>
                <td>工程师</td>
            </tr>
            <tr>
                <td>李四</td>
                <td>30</td>
                <td>上海</td>
                <td>设计师</td>
            </tr>
            <!-- 更多行数据 -->
            <tr>
                <td>王五</td>
                <td>28</td>
                <td>广州</td>
                <td>产品经理</td>
            </tr>
            <tr>
                <td>赵六</td>
                <td>35</td>
                <td>深圳</td>
                <td>运营</td>
            </tr>
            <tr>
                <td>钱七</td>
                <td>27</td>
                <td>杭州</td>
                <td>测试工程师</td>
            </tr>
            <tr>
                <td>孙八</td>
                <td>32</td>
                <td>南京</td>
                <td>前端开发</td>
            </tr>
            <tr>
                <td>周九</td>
                <td>29</td>
                <td>成都</td>
                <td>后端开发</td>
            </tr>
            <tr>
                <td>吴十</td>
                <td>31</td>
                <td>武汉</td>
                <td>数据分析师</td>
            </tr>
        </tbody>
    </table>
</div>

</body>
</html>