Flexbox align-content 属性

实例代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox align-content 示例</title>
    <style>
        .flex-container {
            display: flex;
            flex-wrap: wrap;
            align-content: space-between; /* 关键属性 */
            height: 300px;
            width: 400px;
            background-color: #f0f0f0;
            border: 2px solid #333;
            margin-bottom: 20px;
        }
        
        .flex-item {
            width: 100px;
            height: 50px;
            margin: 5px;
            background-color: #4CAF50;
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            font-family: Arial, sans-serif;
        }
        
        h2 {
            font-family: Arial, sans-serif;
            color: #333;
        }
    </style>
</head>
<body>
    <h2>Flexbox 示例: align-content: space-between</h2>
    <div class="flex-container">
        <div class="flex-item">1</div>
        <div class="flex-item">2</div>
        <div class="flex-item">3</div>
        <div class="flex-item">4</div>
        <div class="flex-item">5</div>
        <div class="flex-item">6</div>
        <div class="flex-item">7</div>
        <div class="flex-item">8</div>
    </div>
    <p>注意观察多行项目在容器中的分布方式 - 第一行在顶部，最后一行在底部，中间行均匀分布。</p>
</body>
</html>