European stocks dipped on Monday as investors assess the latest violations of an increasingly fragile ceasefire between the U.S. and Iran, and a potential acquisition bid for Britain's EasyJet . Shortly after the opening bell, the pan-European Stoxx 600 was 0.2% lower, with most sectors beginning the new trading week in negative territory. London's FTSE 100 opened 0.2% lower, while France's Cac 40 was flat. Germany's Dax , on the other hand, gained 0.1%. Europe's tech index bucked the wider