Maps Google: Padding top or centering a InfoWindowTabsHtml

Question

Sometimes, when a InfoWindowTabsHtml is oppened, a panning moves the map a little bit to the top. The anchor used would be the beginnig of the InfoWindow, but actually is using the text of the tabs, Example:

www.maplist.com.br/image.png

Here I have two options: adjust the pan to the beginnig of the InfoWindow (the best solution) or opens the InfoWindow centralized.

Anyone knows how to do that?

I`m using:

Pins[i].openInfoWindowTabsHtml(tabs, {buttons:{close:{show:2}}});