JSFiddle - React, Tailwind, and code Playground

by Web Carvers

HTML

<div class="parent">
    <div class="child"></div>
</div>

CSS

.parent {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  border:#ddd dashed 1px;
  padding:2%;
}

.child {
    background:tomato;
  width: 30%;  /* Or whatever */
  height: 100px; /* Or whatever */
    flex-grow: 1;
  margin: auto;  /* Magic! */
}