When setting veritcal-align: baseline; on table cells, and including a label in a cell then next to it an input for that label in the next cell, if the value of the input it set to nothing, or not set, there is excess spacing added around the input which makes the label appear lower down.
See this simple test case for further detail:
Seven years later, and this is still a bug in Safari. I have a small reproduction of the bug here:
No other browsers have this odd behaviour when combining vertical-align: baseline on table cells, with display: block in input elements inside the table cell.