Suzanne

This plugin adds a metabox to all post and page edit screens ( and optionally to 
custom post type edit screens ) that allows the user specify custom CSS for that 
page or post. All it does is wrap your CSS in tags 
and then inserts the block into the section of your page/post. Pretty simple.

Custom CSS for Pages and Posts

This plugin adds a metabox to all post and page edit screens ( and optionally to

Code Amp

Ross Morsali

Forget About Shortcode (FASC) Buttons are a visual way to add CSS buttons in the rich text editor and to your themes. Instead of adding shortcodes in the post editor, you insert real, styled buttons – making the process of adding buttons to your posts and pages much more natural whilst improving the appearance and usability of the post editor.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/BA9ruSe-i1A?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
FASC Buttons tries to be as clean as possible with the html, only using data attributes for necessary features – the buttons you use in the post editor use the exact same classes as on the front end of your site with no extra or hidden markup to make them behave this way.
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New – add FASC buttons to widgets in WP 4.8 🙂
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Editing a button couldn’t be easier – just double click a button and an options panel appears allowing you to completely reconfigure the current button – beats tedious shortcodes and using precise syntax!
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Utilises the latest CSS properties for styling
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Includes Dashicons & <a href="http://fortawesome.github.io/Font-Awesome/icons/" rel="nofollow ugc">Font Awesome Icons</a> to add to your buttons and use in your themes.
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Your ratings mean a lot – if you like the plugin please consider leaving a review.
This plugin is only compatible with WordPress 4.2 and upwards (download version 1.x for compatibility with WP 3.9 – 4.1)
<h4>Links</h4>
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<li><a href="http://www.designsandcode.com/551/wordpress-forget-about-shortcode-buttons/" rel="nofollow ugc">FASC Buttons Discussion</a></li>
<li><a href="https://www.youtube.com/watch?v=BA9ruSe-i1A" rel="nofollow ugc">FASC Buttons Video Demo</a></li>
</ul>

Forget About Shortcode Buttons

... and this has it. Works exactly as advertised and is WYSIWYG. In edit mode, the buttons don't shrink when they receive focus, which I've seen on other plugins. There are a wide variety of choices for appearance, and the icons feature is an excellent addition. It just works.

I look for ease of use...

A visual way to add CSS buttons in the rich text editor and to your themes.

Custom CSS for Pages and Posts vs Forget About Shortcode Buttons