body { 
            font-family: Arial, sans-serif; 
            max-width: 600px; 
            margin: 0 auto; 
            padding: 20px; 
            text-align: center; 
        }
        #bookmarklet-code {
            background: #f4f4f4;
            padding: 10px;
            word-break: break-all;
            user-select: all;
        }
        button {
            background: #007bff;
            color: white;
            border: none;
            padding: 10px 20px;
            cursor: pointer;
        }