Скачать или смотреть How to Reset Font-Size for Specific Elements in a Div Using CSS/SASS

A comprehensive guide on changing the `rem` font size for specific divs using CSS or SASS without affecting the entire layout. Learn effective methods and browser compatibility tips!
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This video is based on the question https://stackoverflow.com/q/54085499/ asked by the user 'Sunny' ( https://stackoverflow.com/u/7267866/ ) and on the answer https://stackoverflow.com/a/69527261/ provided by the user 'David Vielhuber' ( https://stackoverflow.com/u/2068362/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Adjusting Font-Size Within a Specific Div: A Step-by-Step Guide

When working with web design, we often face the challenge of adjusting styles specifically for certain elements without disturbing the entire layout. One common requirement is changing the rem font size for elements within a specific div. This guide addresses a scenario where you want to modify the font size for all elements inside a particular div.parent without impacting the rest of your site.

The Problem

Imagine you have a nested HTML structure like this:

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

In this code, the default rem size is set to 16px, and your goal is to reduce it to 12px (which is equivalent to 75%). Changing the html tag would affect all elements across the whole site, which is not ideal. So, let's explore methods to adjust the font size without any global side effects.

The Solution

There are two main CSS approaches to achieve this modification, which you can implement using either plain CSS or SASS. Let’s take a look:

CSS Solution (Non-Firefox Browsers)

If you’re looking for a quick solution that works across most modern browsers except Firefox, you can use the zoom property:

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

Explanation:

The zoom property effectively reduces the size of the entire div.parent and its children, scaling down everything by 75%. This is a simple and efficient solution if cross-browser compatibility isn't a top priority.

CSS Solution (Including Firefox Compatibility)

To ensure compatibility with Firefox, you can adopt a slightly different approach by applying transformations:

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

Explanation:

The transform: scale(0.75); scales your div.parent, reducing its size by 75% just like the zoom.

The transform-origin: top left; ensures the scaling starts from the top left corner of the parent div, keeping it aligned with the rest of your layout.

Adjusting the width to 133.33% compensates for the scaling effect, maintaining the relative layout integrity.

Conclusion

By using these techniques, you can effectively manage the font size within a specific div without affecting other elements on your page. Both solutions have their pros and cons, depending on which browsers you prioritize. Implementing these strategies helps you tailor your web design to meet aesthetic and functional needs while maintaining a user-friendly experience.

Feel free to experiment with the provided codes and adjust them to suit your specific implementation. Happy coding!