Problem with button's height

Is it possible to change the height of button in dhtmlxForm?
I use JSON format. I can change width, but how to change height.
{type: “button”, name: “btn2”, value: “Button2”, width: 80, height: 80, inputLeft: 382, inputTop: 218}
Name/value pair - height: 80 - doesn’t work.

There is no such property for button:
But you can try something similar with the approach from this topic: