JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
  <div class="column">1</div>
  <div class="column">2</div>
  <div class="column">3</div>
  <div class="column">4</div>
  <div class="column">5</div>
  <div class="column">6</div>
  <div class="column">7</div>
  <div class="column">8</div>
</div>

CSS

.container {
  border: 1px solid #000;
}

.container:after {
  content:"";
  display:block;
  clear:left;
}

.column {
  box-sizing:border-box;
  border:1px solid #CCC;
  padding: 10px 20px;
  width:50%;
  float:left;
}

@media screen and (max-width:480px) {
  .column {
    width:100%;
  }
}