JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="leftdiv" class="divs">
        gouranga
    </div>
    <div id="rightdiv" class="divs">
        foo<br />
        bar<br />
        baz
    </div>
</div>

CSS

#wrapper {
    border: 1px solid blue;
    display: table;
}
.divs {
    display: table-cell;
}
#leftdiv {
    border: 3px solid red;   
    width: 100px;
}
#rightdiv {
    border: 3px solid green;  
    width: 500px;
}