_replacedElementFactory = new SwingReplacedElementFactory();
setMedia("screen");
this.uac = uac;
setCss(new StyleReference(uac));
XRLog.render("Using CSS implementation from: " + getCss().getClass().getName());
setTextRenderer(new Java2DTextRenderer());
try {
setDPI(Toolkit.getDefaultToolkit().getScreenResolution());
} catch (HeadlessException e) {
setDPI(DEFAULT_DPI);
}