Elsa tried to push the button through its hole. No luck.
The button was just a little too big. Or the hole a little too small. Maybe both. Maybe neither. Maybe it was one of those modern garments where the button and the hole were not actually designed to go together. Just there for show, not for sensible use or anything of that sort.
Or maybe she just needed to replace it.
Elsa took the shirt off, and sitting in her jeans and a tank top, cut the offending button free. She searched through her button jar, found a good colour, and started sewing.
Once it was attached, Elsa threw the shirt over her shoulders again, and pushed the button through. It fit like a charm, and she smiled. Then she undid that button, slipped the shirt off again, and started in on replacing the other six buttons.