body {
            font-family: 'Open Sans', sans-serif;
            background-color: #f5f5f5;
        }

        .container {
            max-width: 400px;
            margin: 0 auto;
            padding: 20px;
            background-color: #ffffff;
            border-radius: 5px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        h2 {
            text-align: center;
            margin-bottom: 20px;
        }

        label {
            font-weight: bold;
        }

        input[type="text"],
        input[type="password"] {
            width: 100%;
            padding: 10px;
            margin-bottom: 20px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box;
        }

        input[type="submit"] {
            width: 100%;
            padding: 10px;
            background-color: #4CAF50;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
        }

        input[type="submit"]:hover {
            background-color: #45a049;
        }

        @keyframes blink {
            0% { background-color: white; }
            50% { background-color: #33ff99; }
            100% { background-color: #9FFFBA; }
        }

        .blink-effect {
            animation: blink 1s infinite;
        }