In the current version, we show a blue highlight when mouse is over with shift/control pressed. This should be changed as per the UX design. We need to show this blue highlight only when clicked to indicate that "you are seeing the details of _this_ link". The highlight should be removed when clicked outside except the link card.
This is a left over from https://wikimedia.mingle.thoughtworks.com/projects/language_engineering/cards/4188