For beginners, the XYPanel Component is your friend - Sometimes

[campopianoa]

Yes but see this as well:

How to make app pages responsive

Hi @Agobin, @p.colbert is right - although most of our containers automatically resize to fit mobile screens, XYPanels don’t know how to rearrange your components! Can I ask why you are using an XYPanel in the first place? Perhaps you can do what you want with a ColumnPanel (which collapses automatically on smaller screens) or a GridPanel (which can be configured).