Cute white cardigan top with ruffle sleeves

White cardigan zip top with flared ruffle sleeves Looks very cute on, the sleeves are amazing No tag, size estimate is S. See measurements in photos Worn few times, there’s a yellowish stain on the zipper in the middle of top and another one on the top below it. Didn’t come out in wash but could possibly be fixed with bleach? See photos, zoom in and ask questions if there is anything else you want to know.