White Blocked Button Down Blouse

Super cute, white button down blouse. The shirt has a straight hem, I only tied it because I like the look! I’m a size S but it’s a size L because I like the tied not, loose fit look. MINOR FLAW: there’s a small coffee dot sized stain (photographed in last picture). I washed it once since the stain got on there but never used any spray or anything on it. Might be worth a try to get it out!