GUI construction tips

["Fernando Apesteguía" <fernando apesteguia gmail com>]

Hi,

I'm creating a GUI with Gtk. I'm using VBoxes and HBoxes, so my app resizes
when dpi changes and so on.
But I don't like the look of some aspects. For example, If I have a Hbox
with two columns and I place two label (one in each column)
the label is so close to the window border. So I place additional columns
with a label beside the border. The label text is only a space. The effect
is that
I have now my other labels not close to the border, and it looks nice.

But I think this is not the way to manage this.... in fact I think this is a
bad workaround. I didn't see any  "separator widget".
How can I do this?

Best regards!