JSFiddle - React, Tailwind, and code Playground

by H3AR7B3A7

HTML

<div class="container">
  <div>ONE</div>
  <div>TWO</div>
</div>

CSS

.container {
  /* Mobile by default as Roy pointed out */
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  /* For desktops */
  .container {
    flex-direction: row;
  }
}