Raihanul Islam

Easily add unlimited alert boxes for the new WordPress block editor. This includes dismissible alert notices.
This plugin works only in the Gutenberg/Block editor. Please use WordPress 5.0 and above or the Gutenberg plugin for pre 5.0 WordPress installations.

Awesome Alert Blocks

Awesome Alert Blocks notices for the new WordPress block editor.

Vektor,Inc.

Hidekazu Ishikawa

DRILL LANCER

sysbird

Naoki Ohashi

Daiki Oshima

Tomoki Shimomura

chiakikouno

mimi

nc30

kaorock72

mthaichi

This is a plugin that extends Gutenberg’s blocks.
[Blocks] 
* Alert 
* Balloon 
* Border Box 
* Button 
* Classic FAQ 
* New FAQ 
* Flow 
* Heading (not recommended) 
* Icon 
* Icon Outer 
* Page Content 
* PR Blocks (not recommended) 
* PR Content (not recommended) 
* Responsive Spacer 
* Staff (not recommended) 
* Page list from ancestor 
* Slider 
* Visual Embed 
* Accordion [ Pro ] 
* Animation [ Pro ] 
* Archive list [ Pro ] 
* Blog Card [ Pro ] 
* Breadcrumb [ Pro ] 
* Button Outer [ Pro ] 
* Card [ Pro ] (not recommended) 
* Category Badge [ Pro ] 
* Child page list [ Pro ] 
* Dynamic Text ( Post Type name / Ancestor Page name ) [ Pro ] 
* Fixed Display [ Pro ] 
* Icon Card [ Pro ] (not recommended) 
* Post list [ Pro ] 
* Post list Slider [ Pro ] 
* New Badge [ Pro ] 
* Selected Post List [ Pro ] 
* Step [ Pro ] 
* Tab [ Pro ] 
* Table of Contents [ Pro ] 
* Taxonomy [ Pro ] 
* Timeline [ Pro ] 
* Grid Column [ Pro ] 
* Grid Column Card [ Pro ] 
* Outer [ Pro ]
[Extensions] 
* Hidden extension 
* Highlighter 
* Inline Font Size 
* Margin extension 
* Nowrap 
* Responsive BR 
* Columns direction 
* Custom CSS [ Pro ] 
* Link toolbar
[ Settings ] 
* Balloon 
* Custom Format [ Pro ] 
* Custom Block Style [ Pro ] 
* Common Margin 
* Load Separate 
* FAQ Block [ Pro ] 
* Custom CSS [ Pro ] 
* Block Manager 
* Block Style Manager
[ Tools ] 
* Import Export
[ Editing and correction ]
The source code of this plugin is below. 
https://github.com/vektor-inc/vk-blocks

Awesome Alert Blocks vs VK Blocks