The default poem formatting edit

  I think that I shall never see
  A poem lovely as a tree.

  In fact, unless the billboards fall
  I'll never see a tree at all.

With the div margin-top workaround edit

  I think that I shall never see
  A poem lovely as a tree.

  In fact, unless the billboards fall
  I'll never see a tree at all.

It scales well, too edit

  I think that I shall never see
  A poem lovely as a tree.

  In fact, unless the billboards fall
  I'll never see a tree at all.