JSFiddle - React, Tailwind, and code Playground

HTML

<p>Here is some text and an <a href="http://google.com">absolute link</a>. It's a bit different, no?
    
<p>By comparison, <a href="/">relative links</a> appear as normal.

CSS

a[href ^= "http"]:after {
     content: " " url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAVklEQVR4Xn3PgQkAMQhDUXfqTu7kTtkpd5RA8AInfArtQ2iRXFWT2QedAfttj2FsPIOE1eCOlEuoWWjgzYaB/IkeGOrxXhqB+uA9Bfcm0lAZuh+YIeAD+cAqSz4kCMUAAAAASUVORK5CYII=);    
}