How is it possible to let children items of a flexbox container not stretch but overflow horizontally? So that you can either scroll with overflow-x or cut the content on the right side.
My experiments ended with horizontally stretched items although they have a fixed width.

If the flex-container has
flex-wrap:no-wrap(default), then setting it tooverflow:auto;and the flex-items toflex: 0 0 100%(or whatever your desired width instead of 100%) should be enough.