JSFiddle - React, Tailwind, and code Playground

HTML

<div class="outer">
  <div>  
    <select>
      <option>England</option>
      <option>Scotland</option>
      <option>Ireland</option>
      <option>United States of America</option>
      <option>France</option>
    </select>
  </div>
  <div>  
    <select>
      <option>England</option>
      <option>Scotland</option>
      <option>Ireland</option>
      <option>United States of America</option>
      <option>France</option>
    </select>
  </div>
</div>

CSS

.outer {
	display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-start;
}