Percentage values for 'top, left' properties in positioning

[SchlauKunde]

Officially the values for the 'top, left' positioning properties must be pixel numbers; like so:

 isc.Button.create({
     top:10,
	 left:10,
     title:"Button1"
 });

I was curious and have used percentage values for those properties; like so:

 isc.Button.create({
     top:"10%",
	 left:"10%",
     title:"Button1"
 });

And to my pleasant surprise, the placement of the button seems to adhere to those percentage positioning values ...

The question is: Are percentage values for the 'top, left' positioning properties officially supported or not ? Own experiences tell me that probably the documentation is not yet up-to-date ...

[Isomorphic]

This is a supported feature, yes. The docs will be updated.