JSFiddle - React, Tailwind, and code Playground

HTML

<div class="PageHeader_wrapper" id="header-buttons">
				  <form id="CreateAccount" action="CreateAccount.php" method="post">
				    <input type="submit" value="Create an account">
          </form>
</div>

CSS

#header-buttons {
	margin-right: 35px;
	float: right;
	height: 68px;
	width: 320px;
	border: 1px solid red;
  display: table;
}

#CreateAccount {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}