Stewart Stirling, 19, launched the pyrotechnic during the Light Blues' clash with Sparta Prague on November 25 last year.
It's believed the child was five years old at the time of the sick attack and was left with burned clothing.Stirling's charge stated that he, 'culpably and recklessly threw a lit pyrotechnic into a crowd of football supporters in close proximity to a chid to the danger of said supporters and child'. The teenager, from Rothesay, Argyll and Bute, kicked off while watching Rangers win 2-0 over the Czech side in the Europa League tie.
He pled guilty to culpable and reckless conduct. Sheriff Anthony Deutsch refused to hear a narrative of the facts and admonished Stirling of the single charge.