JSFiddle - React, Tailwind, and code Playground

HTML

<div id="shell">
    <div id="title">TITLE HERE</div>
    <div id="content">Article Content Goes Here</div>
</div>

CSS

#shell {
 width:500px;
 height:300px;
 background:lightGrey; 
 -moz-border-radius:6px;  
}

#title {
 background:green;
 padding:5px;
 -moz-border-radius:6px 6px 0 0;   
}