How to keep wrapped flex-items the same width as the elements on the previous row?

Question

I have a

that is a flex-box and a bunch of
• s in it which are the flex-items.

  I am trying to get the

Answer 1

Alternative - grid

its not the answer of what you want, but it nice to use:

display: grid
grid-template-columns: repeat(auto-fill, minmax(70px, 1fr))

https://codepen.io/omergal/pen/povzJrz

ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
}

li {
  min-width: 40px;
  max-width: 100px;
}

ul,
li {
  margin: 0;
  padding: 0;
  list-style: none;
}
ul {
  background-color: tomato;
}

li {
  margin: 0.5em;
  background-color: darkgreen;
}

img {
  width: 100%;
  opacity: 0.5;
}
figure,
img {
  margin: 0;
  padding: 0;
}