The Power of CSS-in-JS: How Styled Components Streamline React Development

Dev Balaji
2 min readMay 9, 2023

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Styled components are a popular approach to styling React applications that combines the power of JavaScript and CSS. They allow you to write CSS styles directly in your JavaScript code, creating a more modular and component-based approach to styling.

Styled components allow you to create reusable styles for your components, making it easy to maintain consistent styles across your application. Additionally, styled components provide a way to easily manage and update styles, allowing you to quickly make changes to your application’s appearance without the need for complex CSS selectors and cascading styles. Isn’t that fun..!!!

Here’s a basic guide on how to use styled components in React:

  1. First, you’ll need to install the styled-components package in your project. You can do this using npm or yarn by running the following command in your terminal:
npm install styled-components 
(or)
yarn add styled-components

2. Import the styled function from styled-components at the top of your React component file:

import styled from 'styled-components';

3. To create a styled component, use the styled function followed by an HTML element or a custom component. For example, to create a styled div, you can write:

const StyledDiv = styled.div`   
background-color: #f1f1f1;
padding: 20px; `;

4. You can now use the StyledDiv component in your React code just like any other component

function MyComponent() {
return (
<StyledDiv>
<p>This is some text inside a styled div!</p>
</StyledDiv>
);
}

The styles defined in the StyledDiv component will be applied to the rendered div element.

5. You can also use props to conditionally apply styles to your components. For example, you can write:

const StyledButton = styled.button`
background-color: ${props => props.primary ? '#4CAF50' : '#f1f1f1'};
color: ${props => props.primary ? 'white' : 'black'};
padding: 10px 20px;
border-radius: 4px;
border: none;
`;

In this example, the background-color and color styles are determined by the primary prop passed to the component. If primary is true, the background color will be green and the text color will be white.

You can use this component in your React code like this:

function MyComponent() {   
return (
<>
<StyledButton>Default</StyledButton>
<StyledButton primary>Primary</StyledButton>
</>
);
}

The first StyledButton component will have the default styles, while the second StyledButton component will have the primary styles applied.

Conclusion

That’s it! This is a basic introduction to using styled components in React. Overall, styled components offer a flexible and powerful way to style React applications, and are a popular choice for developers looking for a more modern and efficient approach to styling. There are many more advanced features and techniques you can use, so be sure to check out the styled-components documentation for more information.

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Dev Balaji
Dev Balaji

Written by Dev Balaji

🚀 Tech Enthusiast | 🌟 Mastering JavaScript & Frameworks | 💡 Sharing Tips & Tricks | 📘 Aspiring Blogger & Architect | 🐍 Python Practitioner

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