Line spacing in codeview can be dynamic since it will accommodate larger objects(picture, icons, views) on a line.
See:
In the image below the A line spacing is only 80% of the B spacing. There are no line breaks in the paragraph. The settings are shown below. I have attached a small project. It happens at other times, somehow related to fontsize, width, and the letters in the line. I suspect that this is not a...
Vertical alignment on a panel is possible but with some thought. search for this.
I usually put a view tag with a panel as a space holder. Then adjust the height as needed.