Application on iPad : how to enable zooming ?

Dear all,

I want to be able to zoom on my Analysis Application on iPad. This is not working as default behaviour.

I notice in the DOM Explorer : user-scalable=no

To enable the zoom-functionality, I'm testing this custom.css :

@viewport { 

     width: device-width;  

     zoom: 1;  

     min-zoom: 0.5;  

     max-zoom: 2.0;  

     user-zoom: zoom;  

     orientation: landscape;

}

However the user-scalable-property in the DOM Explorer does not change.

Is this approach a supported one ?

Thanks

Hans