JSFiddle - React, Tailwind, and code Playground

HTML

<div class="column">

    <div class="list_item">A</div>
    <div class="list_item">B</div>
</div>
<div class="column">
    <div class="list_item">C</div>
</div>

CSS

.list_item {
display: inline-block;
}
.column{
  width:25px;
  background-color:red;
}