Are you using Kendo UI Mobile to build a mobile application? If that is the case, then you need to stretch the Kendo UI Mobile View in order to have the child elements of the view stretch to occupy the entire content area. Next, you can apply css rules to position your content in the center of the view.
I modified your example slightly to demonstrate one possible approach. Please note that the bootstrap style settings affect the display of the row class - there are margins and width applied which you might have to override to further customize the display of the elements.