<!DOCTYPE html>
<style>
#negative-percentage-transformY{
  transform: translateY(-75px);
  -webkit-transform: translateY(-75%);
  -o-transform: translateY(-75%);
  -ms-transform: translateY(-75%);
  -moz-transform: translateY(-75%);
}
.block {
  display = block;
}
</style>
<div class='block'>
  <br/>
</div>
  <br/>
<div class='block'>
</div>
<div id='negative-percentage-transformY'>I am not a hidden element </div>