Real Madrid – Arsenal – 1:2: live broadcast of the second leg of the Champions League quarter-finals. Who won?

I’m confused about the result of the match between “Real Madrid” and “Arsenal”. It says the score is 1:2, but I’m not sure who won, as it was an online broadcast of the second leg of the Champions League quarter-finals. I don’t know what this means for the overall situation in the two-legged tie. I need help to understand who advanced.