JSFiddle - React, Tailwind, and code Playground

by Chris Ball

HTML

<div class="list">
  <div class="line">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="line">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="line">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>
</div>

CSS

html {
  height: 100%;
}

body {
  background: #deface;
  align-items: center;
  display: flex;
  height: 100%;
  justify-content: center;
  margin: 0;
}

.list {
  border: 1px solid green;
  display: flex;
  flex-direction: column;
  font-size: 0;
  margin: auto;
  padding: 1px;
}

.item {
  background: #bada55;
  border: 1px solid #fff;
  display: inline-block;
  height: 2rem;
  width: 2rem;
}