css两列等高

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS两列等高示例</title>
    <style>
        .container {
            display: flex;
        }
        .column {
            flex: 1;
            padding: 20px;
            border: 1px solid #ccc;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="column" style="background-color: #f9f9f9;">
            <h2>内容列</h2>
            <p>这是内容列的详细内容，可能会很长。</p>
        </div>
        <div class="column" style="background-color: #e9e9e9;">
            <h2>侧边栏</h2>
            <p>这是侧边栏的简短信息。</p>
        </div>
    </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS两列等高示例</title>
    <style>
        .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .column {
            padding: 20px;
            border: 1px solid #ccc;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="column" style="background-color: #f9f9f9;">
            <h2>内容列</h2>
            <p>这是内容列的详细内容，可能会很长。</p>
        </div>
        <div class="column" style="background-color: #e9e9e9;">
            <h2>侧边栏</h2>
            <p>这是侧边栏的简短信息。</p>
        </div>
    </div>
</body>
</html>