Theme Junkie

<p>This plugin will enable a <a href="https://www.theme-junkie.com/plugins/theme-junkie-custom-css/" rel="nofollow ugc">custom css manager</a> on administration page to add Custom CSS code to your WordPress website. It will automatically override any theme or plugin default styles. It also very useful if you want to add customization to your website but do not want to edit your theme or plugin css files.</p>
<p>It comes with two ways to add the custom css code:</p>
<p><strong>1. Setting</strong><br />
You can go to Appearance → Custom CSS, then you will see a big box/textarea. Put your css code there.</p>
<p><strong>2. Customizer – Live Preview</strong><br />
If you want to see the live preview while you adding the custom css code, then you can go to Appearance → Customize, after that open the Custom CSS section tab.</p>
<h4>Features Include:</h4>
<ul>
<li>No configuration needed</li>
<li>Live preview</li>
<li>Easy-to-use</li>
<li>Child theme alternative to add customization</li>
<li>Uninstall procedure</li>
</ul>
<h4>Plugin Info</h4>
<ul>
<li>Developed by <a href="https://www.theme-junkie.com/?utm_source=wporg&utm_medium=text_link&utm_campaign=Site%20Promotion" rel="nofollow ugc">Theme Junkie</a></li>
<li>Check out the <a href="https://github.com/themejunkie/theme-junkie-custom-css" rel="nofollow ugc">Github</a> repo to contribute.</li>
</ul>


TJ Custom CSS

Simply works

Easily to add any Custom CSS code to your WordPress website.

Weblink

<p>Cssor is a simple and light custom css editor right in your wordpress administration with minify option, no need for ftp client.<br />
It generate custom css ‘cssor.css’ which is then included in your theme, and it overide theme css.</p>
<h3>Features:</h3>
<ul>
<li>Ace code editor</li>
<li>Minify css</li>
<li>Clean css from comments</li>
<li>Create static or inline css file</li>
</ul>


Cssor

Simple and light wordpress custom css editor.

TJ Custom CSS vs Cssor