css动态箭头

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS 动态箭头示例</title>
    <style>
        .arrow {
            position: relative;
            display: inline-block;
            padding: 10px 20px;
            background-color: #007bff;
            color: white;
            border-radius: 5px;
            cursor: pointer;
        }

        .arrow::after {
            content: '';
            position: absolute;
            top: 50%;
            right: 10px;
            width: 0;
            height: 0;
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-left: 5px solid #007bff;
            transition: border-color 0.3s;
        }

        .arrow:hover::after {
            border-left-color: #ff6347;
        }
    </style>
</head>
<body>
    <div class="arrow">点击我</div>
</body>
</html>