Can I layout widgets by using StyleSheet?

[MorrisLiang]

I finally figure it out myself.
for somebody who wants to know how,see the stylesheet below:

QFrame{
	background: url(:/Pics/TitleBG.png) no-repeat;
	qproperty-geometry:rect(0 0 252 35);
}

QFrame{
	background: url(:/Pics/TitleBG.png) no-repeat;
	qproperty-geometry:rect(0 0 252 35);
}

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set the qproperty-geometry to be rect(x,y,width,height).