Responsive result with flexbox and position and mediaquery

It is stretching a bit at the 450-800px range - I'd either set the media query for a smaller width or add another media query to handle that break point. Also, I'd work on trying to be a bit more descriptive with your class names as it makes your code a bit difficult to follow. Classes named one, two, or a, b, c, d maybe made sense in the moment, but it has no meaning for someone else trying to read your code or maybe even you if you come back to it a few weeks from now. Hope this is helpful.