Goran Petrovic

This utility plugin allow you to change font family, colors and backgrounds of any element on your theme using Customize 
interface.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/0rESNVbxulo?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent&listType=playlist&list=PLUDxG30KAdnrme6JDRH-r3IipKPqyoeIo" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<a href="https://www.youtube.com/watch?v=0rESNVbxulo&list=PLUDxG30KAdnrme6JDRH-r3IipKPqyoeIo" rel="nofollow ugc">Video Tutorials</a>
Very simple add your CSS selectors and choice CSS options then open Customize and change page element style.
Options
<ul>
<li>Google fonts</li>
<li>Display</li>
<li>Font color</li>
<li>Font family</li>
<li>Background</li>
</ul>
Features
<ul>
<li>Easy to use</li>
<li>Compatibilty with any theme or plugin</li>
<li>Browsers supported</li>
<li>Simple interface</li>
<li>Responsive options</li>
<li>Generate CSS code</li>
</ul>

WP CSS Generator

Preporuka!

Customize you WP page elements easy and fast. Get full control over any element or property.

John Cummings

If you’ve ever wanted to control how a particular part of your page or posts looks without having to modify the theme files or stylesheets, 
this is a simple plugin that allows you to do that.
Once installed and activated, you’ll have a new settings panel in the WordPress admin that will provide you with a text area block 
where you can include any styling you’d like to use, and a second input field that allows you to insert a comma delimited list of page 
or post IDs to apply these styles to.
Alternatively, you can enter ‘ALL’, and have your styles applied on every page/post.
Bug Reports or Feature Requests 
https://trello.com/b/9Bio6kHl
Follow me on Twitter 
https://twitter.com/jcummings1974

CSS Theme Override

Adds a settings panel to the Wordpress admin that allows you to specify css class or id styles and pages/posts to apply them to.

WP CSS Generator vs CSS Theme Override