France global Giroud poked Milan stage with 15 minutes ultimate after Ivan Perisic had given champions Inter a deserved first-half of lead, and 3 mins later sent the Milan fans on the San Siro wild with a neat low finish to win the fit.
The 35-year-old become simplest playing because Zlatan Ibrahimovic changed into out with an Achilles tendon harm however pounced just as Inter gave the look to be headed for what up to that point might had been a deserved win.
Milan had hardly ever created anything till Giroud driven Brahim Diaz's mishit and deflected shot past Samir Handanovic but now are right lower back in a identify race which regarded to be heading in Inter's favour.
Napoli can pile even greater pressure on Simone Inzaghi's Inter, who've a recreation in hand, after they face Venezia with the risk to tug stage on 52 factors with Milan.
Inter journey to Napoli next weekend in a large fortnight which also includes the go to of Liverpool for the primary leg of their Champions League final 16 tie.