JSFiddle - React, Tailwind, and code Playground

center div

HTML

<div id="CenterContent">
            center
        </div>
        <div id="rightContent">
            right
        </div>

CSS

#rightContent {
             background-color: green;
             width: 55px;
             height: 50px;
             float: right;
         }

        #CenterContent {
            width: 200px;
            height: 50px;
            background-color: red;
            margin: auto;
        }