JSFiddle - React, Tailwind, and code Playground

by waffl

HTML

<a href="http://test:8888/one">One</a><br />
<a href="http://test:8888/one">One</a><br />
<a href="http://test:8888/one">One</a><br />
<a href="http://google.com">external</a><br />
<a href="http://test:8888/one">One</a><br />
<a href="google.com">Another External</a>

CSS

.external {
    color: red;
}

JavaScript

$("a[href^='http']:not([href^='http://test:8888/'])").addClass("external");