<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>column-reverse + align-content: center</title>
<style>
  .container {
    display: flex;
    flex-direction: column-reverse;
    flex-wrap: wrap;
    align-content: center;

    width: 600px;
    height: 2000px;
    padding: 10px;
    border: 2px solid #222;
    box-sizing: border-box;
  }
  .item {
border: 2px solid #fff;
    width: 150px;
    height: 100px;
    background-color: #43A047;
    color: white;
    justify-content: center;
