<!DOCTYPE html>
<style>p { color: black; }</style>
<style> #a { color: fuchsia { ; color: red } </style>
<style> #b { color: fuchsia ! { ; color: red } </style>
<style> #c { color: fuchsia ! important { ; color: red } </style>
<p id="a">This text should be black.</p>
<p id="b">This text should be black.</p>
<p id="c">This text should be black.</p>