JSFiddle - React, Tailwind, and code Playground

HTML

<div class="page">
    <div class="container">
        <div class="box"></div>
        <div class="box"></div>
    </div>
</div>

CSS

.page {
  width: 100%;
}

.container {
  width: 100%;
  display: block;
  margin: 0 auto;
    text-align: center;
}

.box {
  display: inline-block;
  width: 200px;
    height: 200px;
    background: grey;
}