JSFiddle - React, Tailwind, and code Playground

by Daniel15

HTML

<div class="container">
  <div class="two-columns">
    <div class="one">
      Hello from column 1
    </div>
    <div class="two">
      Hello from column 2
    </div>
  </div>
</div>

CSS

body {
  background-color: #333;
  color: #EEE;
}

.container {
  container-type: inline-size;
  margin-top: 40px;
}

.one {
  border: 2px solid lightblue;
  padding: 8px;
}

.two {
  border: 2px solid lightgreen;
  padding: 8px;
}

.two-columns {
  display: grid;
  gap: 8px;
  /* One column by default */
  grid-template-columns: 1fr;
}

@container (width > 500px) {
  .two-columns {
    /* Two columns on wider screens */
    grid-template-columns: 1fr 1fr;
  }
}