[pesi]

Код:

case ComboBox1.itemindex of
	0: WebBrowser1.OleObject.Document.Body.Style.Zoom:=0.2;
	1: WebBrowser1.OleObject.Document.Body.Style.Zoom:=0.3;
	...
	...
else
	WebBrowser1.OleObject.Document.Body.Style.Zoom:=1;
end;