Data labels not wrapping on css font adjustment

Hi,
I found that data labels doesn't seem to be text wrap properly when font is resized using css styles.
Example(http://jsfiddle.net/jdwk5jaw/)

Is there a way to resize text of labels using api ?

No source file or test is named in the issue; begin by reproducing the label-wrapping behavior from the linked jsfiddle with CSS font resizing. Trace the chart's data-label rendering entry point and define done as labels wrapping correctly after the font size changes, with the API question clarified by the resulting behavior.

Written by the indexing model from the issue text.