Best Answer Danny , 15 January 2014 - 01:10 PM
The Fixed Navbar is only fixed on large screens, if it were to be fixed on a tablet or mobile device it would take up too much screen real estate. Thats the reason as to why the fixed navbar isn't fixed. In regards to your header, you have added custom CSS to a TextBox so that its in a fixed position, but unlike the Fixed Navbar you haven't added any @media queries to tell that TextBox to stop being fixed when viewed on a device with a specific screen width.
Therefore, you're going to need to add some more custom CSS via media queries to resolve your issue. As this is custom CSS you have added we are unable to provide support, as we do not provide support for user created CSS. However, the link below is a great guide on Media queries.
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