Style Flex

    xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="vertical">
    
        .header {
            font-family: 'Arial';
            font-size: 15px;
            font-weight: 'bold';
            color: #FFFFFF;
        }
        .message {
            font-family: 'Arial';
            font-size: 12px;
            color: #336699;
        }