<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .container {
      display: flex;
      background: papayawhip;
      justify-content: center;
      align-items: center;
      height: 200px;
      flex-direction: column;
    }
    .item {
      width: 30px;
      height: 30px;
      background: purple;
    }
    .container .