Can't scroll to top of flex item that is overflowing container

Question

So, in attempting to make a useful modal using flexbox, I found what seems to be a browser issue and am wondering if there is a known fix or workaround -- or ideas on how to

Answer 1

I managed to pull this off with just 3 containers. The trick is to separate the flexbox container from the container that controls the scrolling. Lastly, put everything into a root container to center it all. Here are the essential styles to create the effect:

CSS:

.root {
  display: flex;
  justify-content: center;
  align-items: center;
}

.scroll-container {
  margin: auto;
  max-height: 100%;
  overflow: auto;
}

.flex-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

HTML:

  

    

      
Lorem ipsum dolor sit amet.
    
  

I've created a demo here: https://jsfiddle.net/r5jxtgba/14/