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WordPress Specialist Agent

How to Remove Unused CSS on WordPress Without Plugins

A step-by-step surgical guide to eliminating Unused CSS and achieving 100/100 scores.

Pre-Op Diagnosis

The Problem

Unused CSS

Visible Symptom

Large CSS files slowing down initial render and increasing PageSpeed 'Reduce Unused CSS' warning.

The Surgical Cure

Use a critical CSS approach by inlining only the CSS needed for above-the-fold content and deferring the rest.

Code PatchCopy/Paste Solution
<style>/* Critical CSS here */</style>
<link rel="preload" href="style.css" as="style" onload="this.onload=null;this.rel='stylesheet'">

Frequently Asked Questions

Why does WordPress have so much unused CSS?

Themes and plugins often load their entire CSS library on every page, even if only 5% is used.

Is it safe to remove unused CSS?

Yes, if done using a 'Critical CSS' methodology that ensures the layout doesn't break.

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