How to Change fontSize in React Icons Using Styled Components with Hover Effects

Описание: Discover how to seamlessly change the `fontSize` of React icons using styled-components and create engaging hover effects in your application.
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This video is based on the question https://stackoverflow.com/q/67894717/ asked by the user 'marcinb1986' ( https://stackoverflow.com/u/15255487/ ) and on the answer https://stackoverflow.com/a/67895424/ provided by the user 'Toby' ( https://stackoverflow.com/u/9420597/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Change fontSize in React Icons Using Styled Components

When working with React, the ability to customize icons for your application can make your interface more engaging. A common requirement is to change the size of icons, especially when hovering over them. In this post, we’ll explore how to change the fontSize of React icons using styled-components and implement a hover effect that enlarges the icons.

The Problem

Suppose you are using react-icons to display icons in your application. You want them to not only look appealing but also respond to user interaction, like changing size on hover. Here’s a snippet of what you might have started with:

[[See Video to Reveal this Text or Code Snippet]]

However, using inline styles like this makes it difficult to implement hover effects directly. Let's explore how to address this issue effectively!

The Solution

1. Using Inline Styles with Mouse Events

The simplest solution is to use inline styles directly on the icons, combined with mouse events for hover functionality. Here’s how you can do it:

[[See Video to Reveal this Text or Code Snippet]]

onMouseEnter - Triggers when the mouse hovers over the icon, changing its size to 200%.

onMouseLeave - Resets the size back to 180% when the mouse leaves.

2. Creating a Styled Icon Component

If you prefer a cleaner solution that keeps your code organized, consider creating a dedicated component for your styled icons. This approach allows you to use React hooks like useRef, useEffect, and useState to create hover effects. Here’s an example:

Step-by-Step Icon Component Setup

Create the StyledIcon Component:

[[See Video to Reveal this Text or Code Snippet]]

Implement the StyledIcon in BottomBar:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

You now have a clear path to creating responsive, engaging icons using react-icons and styled-components. By leveraging either inline styles with mouse events or creating a dedicated StyledIcon component, you can achieve dynamic hover effects that enhance the user experience.

This customization doesn't just make your icons larger; it can add a layer of interactivity that makes your application feel more fluid and engaging.

Implement these tips in your next React project and watch how a simple hover effect can elevate its appeal!