The Align property, once again available in all TControl descendants, can be set to determine how the component should align inside its container. It is available both in VCL and FMX, but the set of available values in FMX is much larger than in VCL (please refer to the documentation of the Vcl.Controls.TAlign and FMX.Types.TAlignLayout types for a comprehensive overview, available at http://docwiki.embarcadero.com/Libraries/en/Vcl.Controls.TControl.Align and http://docwiki.embarcadero.com/Libraries/en/FMX.Controls.TControl.Align, respectively).
Some possible values for Align are quite straightforward – that is, Top (alTop in VCL) will let your component be positioned in the top part of its parent and it is more or less equivalent to positioning it at the top-left corner of the parent, setting Width the same as its parent, and Anchors to (akLeft, akRight, akTop). You are then free to decide the height of your component, but it will always...