Getting Started with Create React App

This project was bootstrapped with Create React App.

Available Scripts

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

npm test

Launches the test runner in the interactive watch mode.
See the section about running tests for more information.

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

npm run eject

Note: this is a one-way operation. Once you eject, you can't go back!

If you aren't satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.

Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.

You don't have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.

Learn More

You can learn more in the Create React App documentation.

To learn React, check out the React documentation.

Code Splitting

This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting

Analyzing the Bundle Size

This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size

Making a Progressive Web App

This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app

Advanced Configuration

This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration

Deployment

This section has moved here: https://facebook.github.io/create-react-app/docs/deployment

npm run build fails to minify

This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify

Frontend Application Documentation

CSS Styling Guidelines

Font Sizes

When declaring font sizes for elements in the CSS files, please follow the instructions below:

1. Use em units whenever possible for font sizes. The em unit provides flexibility and responsiveness to different screen sizes and resolutions.

Example 1: Using em

h1 {
  font-size: 2em;
}

p {
  font-size: 1.2em;
}

In this example, the h1 element's font size will be twice the default size of its parent element, while the p element's font size will be 1.2 times the default size of its parent element.

2. If em units are not suitable, consider using percentage units for font sizes. The percentage unit allows for relative sizing based on the parent element's size.

Example 2: Using percentage

.container {
  font-size: 90%;
}

.button {
  font-size: 120%;
}

Here, the .container class will have a font size that is 90% of its parent element's size, and the .button class will have a font size that is 120% of its parent element's size.

Other Element Sizes

Similarly, when setting sizes for other elements such as margins, paddings, and widths, please adhere to the following guidelines:

1. Prefer using em units for element sizes. The em unit ensures responsiveness and adaptability to changes in parent element sizes.

Example 3: Using em

.container {
  margin: 1em;
  padding: 0.5em;
  width: 30em;
}

.button {
  margin: 0.5em;
  padding: 0.2em;
  width: 10em;
}

In this example, the .container class has a margin and padding of 1em and 0.5em respectively, and a width of 30em. The .button class has a margin and padding of 0.5em and 0.2em respectively, and a width of 10em.

2. If em units are not appropriate, consider using percentage units for element sizes. The percentage unit allows for relative sizing based on the parent element's size.

Example 4: Using percentage

.container {
  margin: 2%;
  padding: 1%;
  width: 80%;
}

.button {
  margin: 1%;
  padding: 0.5%;
  width: 20%;
}

In this case, the .container class has a margin and padding of 2% and 1% respectively, and a width of 80%. The .button class has a margin and padding of 1% and 0.5% respectively, and a width of 20%.

Conclusion

By following these guidelines and using em and percentage units for font sizes and other element sizes, you can ensure a consistent and responsive design across different devices and screen sizes. These units adapt well to changes in parent element sizes, making them highly recommended for use in this frontend application.