        display: flex;
            justify-content: center;
            margin-bottom: 20px;
        }
        
        .content-container {
            width: 100%;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .masthead {
            width: 100%;
            display: block;
            padding-top: 8px;
            text-align: center;
            background-color: #000000;
        }
        
        @media (min-width: 768px) {
            .masthead {
                