QWebView is not fully stylable
One cannot set border, margins, etc. by setting the stylesheet of a QWebView. Also if one adds a QWebView in a given dummy QWidget container and stylizes the container by setting its margins, the QWebView is not positioned correctly according to its holder object. I've replaced QWebView with QGraphicsWebView + QGraphicsView and QGraphicsScene and stylized the QGraphicsView, but the QGraphicsWebVIew is not stretched to fit the QGraphicsView's size.