垂直文本布局下 border-inline-end 的效果展示

实例代码

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>border-inline-end 与 writing-mode 关系演示</title>
    <style> 
        body {
            font-family: Arial, sans-serif;
            max-width: 800px;
            margin: 20px auto;
            padding: 20px;
        }
        
        h1 {
            color: #333;
            text-align: center;
            margin-bottom: 30px;
        }
        
        div.demo-container {
            background-color: lightgreen;
            inline-size: 300px;
            block-size: 200px;
            padding: 10px;
            margin: 20px auto;
            writing-mode: vertical-rl;
            border-inline-end: 5px solid blue;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        p {
            margin: 0;
            font-size: 16px;
            color: #333;
            text-align: center;
        }
    </style>
</head>
<body>

<h1>border-inline-end 与 writing-mode 关系演示</h1>
    
    <div class="demo-container">
        <p>当 writing-mode 属性值设置为 'vertical-rl' 时，受 border-inline-end 属性影响的边框位于底部。</p>
    </div>
    
</body>
</html>