JSFiddle - React, Tailwind, and code Playground

HTML

<div id="Container">
    <div id="RightColumn">Right column</div>
    <div id="LeftColumn">Left column</div>
</div>

CSS

* {
    color : white;
    line-height : 1.3em;
    text-indent : 10px;
}
#RightColumn {
    float : right;
    width : 200px;
    background-color: blue;
}
 
#LeftColumn {
    margin-right : 200px;
    background-color: red
}