BlueprintJS is a React-based UI toolkit for the web. This library is very optimized and popular for building interfaces that are complex data-dense for desktop applications. Callout Component provides a way for users to visually highlight important content for the user. We can use the following approach in ReactJS to use the ReactJS Blueprint Callout Component.
Callout Props:
- className: It is used to denote a space-delimited list of class names to pass along to a child element.
 - icon: It is used to denote the name of a Blueprint UI icon (or an icon element) to render on the left side.
 - intent: It is used to denote the visual intent color to apply to the background, title and icon.
 - title: It is used to denote the string content of the optional title element.
 
Creating React Application And Installing Module:
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Step 1: Create a React application using the following command:
npx create-react-app foldername
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Step 2: After creating your project folder i.e. foldername, move to it using the following command:
cd foldername
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Step 3: After creating the ReactJS application, Install the required module using the following command:
npm install @blueprintjs/core
 
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Project Structure: It will look like the following.
Project Structure
Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.
App.js
import React from 'react'import '@blueprintjs/core/lib/css/blueprint.css'; import { Callout } from "@blueprintjs/core";   function App() {     return (         <div style={{             display: 'block', width: 700, padding: 30         }}>             <h4>ReactJS Blueprint Callout Component</h4>             <Callout title="Sample Callout Title">                 Greetings from neveropen!             </Callout>         </div>     ); }   export default App; | 
Step to Run Application: Run the application using the following command from the root directory of the project:
npm start
Output: Now open your browser and go to http://localhost:3000/, you will see the following output:
Reference: https://blueprintjs.com/docs/#core/components/callout
