LONDON (TheDeal) -- European markets were slightly more positive than those in East Asia or the U.S. overnight, as investors waited for the European Central Bank chief to set out details of the eurozone's €60 billion ($66.3 billion) quantitative easing program on Thursday. Investors in Europe were less spooked than those in Asia by China's downgrade of its official GDP growth target to "around 7%" from 7.5%. London's FTSE 100 was up 0.18% at 6,931.66, while in Paris the CAC 40 rose 0.52% to 4,942.92.