JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<!DOCTYPE html>
<html>

<head>
  <!-- Bootstrap -->
  <link href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>
  <div class="container">
    <div class="row equal">
      <div class="col-xs-3 col-lg-2">
        <p style="word-wrap: break-word;">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui.
          <p>
      </div>
      <div class="col-xs-3 col-lg-2">
        <p style="word-wrap: break-word;">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui.
          <p>
      </div>
      <div class="col-xs-3 col-lg-2">
        <p style="word-wrap: break-word;">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui.
          <p>
      </div>
      <div class="col-xs-3 col-lg-2">
        <p style="word-wrap: break-word;">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui.
          <p>
      </div>
      <div class="col-xs-3 col-lg-2">
        <p style="word-wrap: break-word;">Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio...

CSS

.equal {
  display: flex;
  flex-wrap: wrap;
  background-color: yellow;
}
.equal > div[class^='col-'] {
  display: flex;
  flex-direction: column;
  border: 1px dashed red;
  width: 50%;
  background-color: lightpink;
}

.equal > div[class^='col-']:first-child {
  width: calc(50% - 1px);
}