It is a bit weird that you obvious think that the layout does not matter.
Your blocks are 60 pixels square. So allow me to gamble that the row grid is 60 pixels. Just glancing at the field i gamble that there are between 18 and 21 visible rows. Yet, your identifier jumps in a 120 pixels grid that has only 14 rows.
And if there is some logic in all that, then it is also save to gamble that you made that identifier 120 pixels height.