The implementation does not provide a 'fixed' header

[ColinEberhardt]

The specification mentions that the aim of PropertyCross is to mimic the look and feel of the various platforms (iOS, Android ...).

For iOS the standard UI has a header (UINavigationBar) and a content area. When the content area scrolls the header remains fixed at the top of the screen.

This issue indicates that for the given frameworks, that the header scrolls with the content.

On an implementation note, this is not a trivial task for an HTML5 app, most mobile web browser do not provide support for fixed position elements. Complex solutions such as iScroll exist:

http://cubiq.org/iscroll-4