JSFiddle - React, Tailwind, and code Playground

HTML

<div class="row">
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
</div>
<div class="row">
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
</div>
<div class="row">
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
</div>
<div class="row">
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
  <div class="column">
    <div class="item">Item</div>
    <div class="item">Item</div>
  </div>
</div>

CSS

body {
  background-color: #ccc;
  margin: 0;
}

.row {
  display: flex;
  padding: 30px;
  white-space: nowrap;
}

.column {
  flex: 0 0 50%;
  white-space: normal;
}

.column + .column {
  margin-left: 30px;
}

.column:last-child {
  border-right: 30px solid transparent;
}

.item {
  padding: 10px;
  background-color: #FFF;
  margin-bottom: 10px;
  border: 1px solid black;