JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
  <div class="bx"></div>
  <div class="bx move-it"></div>
  <div class="bx"></div>
</div>

CSS

body {
  padding: 0;
  margin: 0;
}

.wrapper {
  background: #000;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bx {
  height: 20px;
  width: 20px;
  background: red;
}

.wrapper > div:first-child {
  width: 300px;
}

.wrapper > div:nth-child(2) {
  background: pink;
}


/*.move-it {
				background: pink;
				margin-right: auto;
				margin-left: auto;
			}*/