Gtk.Button:yalign
"yalign" Number : Read / Write
If the child of the button is a Gtk.Misc or Gtk.Alignment, this property can be used to control its vertical alignment. 0.0 is top aligned, 1.0 is bottom aligned.
Since 2.4
"yalign" Number : Read / Write
If the child of the button is a Gtk.Misc or Gtk.Alignment, this property can be used to control its vertical alignment. 0.0 is top aligned, 1.0 is bottom aligned.
Since 2.4