Is there any way to change the height of the tabs on a QToolBox widget and center the title?

I am able to change the height by setting tabSpacing, but then the title is not centered (it is top-aligned). I tried changing the alignment with the stylesheet but no luck. I also tried to force the height with:

```
QToolBox::tab {
     height: 48px;
     alignment: center;"
     margin: 0px 0px 0px 0px;"
}

```

BUt it is not working either. Any ideas?