TylerShaw

What’s It Do?
This plugin adds a box to your pages and posts allowing for page-specific or post-specific CSS stylesheets.
Why Use It?
After developing quite a few WordPress websites, it seems to me that the style.css file gets bloated. If you add a style used on only one page, and then later that page is deleted, you’re visitors now have to download those styles that aren’t even used. It’s wasteful, but maintaining a clean style.css file requires an active effort. This plugin solves that by attaching the these styles to the page or post, allowing them to be updated just like the content is and deleted with the page.
It keeps your style.css file clean and reduces unused style clutter.
What About Efficiency?
There shouldn’t be an issue with overhead from the plugin. Admin code is only executed in the admin panel and front end code is executed on the front end. If you’re website has a large amount of page-specific styles within it that can be migrated into the plugin, it can boost performance by reducing the download size of your style.css file.
Roadmap
This plugin will receive ongoing maintenance as WordPress evolves. No major features are planned, but I am entirely open to feature requests!
Feel free to suggest any feature you desire, or check out the code or contribute on <a href="https://github.com/tyler-shaw/page-specific-stylesheets" rel="nofollow ugc">GitHub</a>, where the project is hosted.
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<li>Additional plugin options.</li>
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If you have a feature idea, suggest it.
Notes
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<li>Style data and options are not deleted by default on uninstall. You must check the options on the plugin settings page to enable the deletion of this data.</li>
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Page Specific Stylesheets

Adds a box allowing for the addition of page-specifc and post-specific CSS stylesheets. Reduces the need to edit and clutter up the style.css file.

carlosramosweb

The plugin widget Specific Posts. With this plugin you can put a post on widget. Works with Elementor.
<h3>License</h3>
This file is part of Nome do teu Plugin. 
Nome do teu Plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published 
by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. 
Nome do teu Plugin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 
You should have received a copy of the GNU General Public License along with Nome do teu Plugin. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

Widget Specific Posts

The plugin widget Specific Posts. With this plugin you can put a post on widget. Works with Elementor.

Page Specific Stylesheets vs Widget Specific Posts