title: Vertical line alignment when opening new window in vim
body: <p>How do I keep vertical alignment when opening a new window (split) under current one in vim?</p>
  
  <p>When I edit a file, some lines are visible (say 1-20). Once I open another window the visible lines change to something else (say 5-15).  I would like to keep the original window vertically aligned, meaning see lines 1-11 in my example.</p>