JSFiddle - React, Tailwind, and code Playground
by oilvier
HTML
<ul>
<li class="foo">1</li>
<li class="foo">2</li>
<li class="foo">3</li>
<li class="foo">4</li>
<li data-toto>5</li>
</ul>
CSS
.foo:first-of-type {background:blue;}
li:not([data-toto]):last-of-type {background:red;}
.foo:last-child {background:rebeccapurple;}