title: Layout UILabels with baseline offset
body: <p>I have a view with labels stacked vertically. The design specification for the view give a vertical offset from the baseline of the text in the top label to the text in the bottom label.</p>
  <p>However when I code for this, the size of the top UILabel will always be big enough to accomodate the descender of the top label. So I can only program the offset from the descender, not from the baseline. In the attached picture, red offset is what I want to code for, but I can only code for the green offset. Is there any way that I can get the baseline offset correct either in the xib or through code? I do not want to do this by trial and error, as that would result in the programmed offset not matching the specs.</p>
  <p><img src="https://i.stack.imgur.com/KUpx3.png" alt="label offset" /></p>