how to align flexbox items in last row to the left

Question

There are many similar solutions but I really cannot get it work here: https://jsfiddle.net/jglabb/os76bytq/2/

<div class="container">
<div class="item">
  item 1
</div>
<div class="item">
  item 2
</div>
<div class="item">
  item 3
</div>
<div class="item">
  item 4
</div>
<div class="item">
  item 5
</div>
<div class="item">
  item 6
</div>
<div class="item">
  item 7
</div>
</div>

.container {
  width: 240px;
  display: flex;
  background-color: green;
  row-gap: 7px;
  flex-wrap: wrap;
  justify-content: space-between;
  align-content: flex-start;
}

.item {
  width: 50px;
  background-color: yellow;
}

So regardless of container width and number of rows - I want to align left whatever left in the last row