How to remove all padding from Label?

I am trying to remove all the padding from a Label contained in an HBox. I set paddingTop and paddingBottom to 0 in both the Label and 开发者_如何学GoHBox but there is still quite a bit of padding. I also tried setting verticalGap to 0 on HBox. If I just have a checkbox in the HBox the padding is removed fine.

Hint - padding can be negative.

Question seems rather old, but recently I faced same problem and solution was replacing

<s:Label>
     some text
</s:Label>

(which gives about 190px of unwanted left padding) with

<s:Label text="some text" />

which works great!

May be there is a padding for the layout of the HBox?