Скачать или смотреть How to Properly Import SCSS Properties: Loading Padding and Margin from Different Files

Discover the best practices for loading `padding`, `margin`, and other styles from different SCSS files. Master the use of `@ extend` and ensure your properties are inherited correctly!
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This video is based on the question https://stackoverflow.com/q/62613120/ asked by the user 'Blablabla' ( https://stackoverflow.com/u/11250051/ ) and on the answer https://stackoverflow.com/a/62613405/ provided by the user 'TokaLazy' ( https://stackoverflow.com/u/5044034/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

When working with SCSS (Sass), it's common to organize your styles across multiple files to keep your codebase clean and manageable. However, a frequent challenge developers encounter is the inheritance of padding, margin, and font styles from one SCSS file to another. This guide will tackle the question of whether it's possible to load these properties effectively between different SCSS files and offer guidance on how to achieve this seamlessly.

The Problem

Imagine you are creating a website using SCSS, and you've defined certain styling rules in a separate SCSS file. For example, you may have a .section-headline class defined in one file like this:

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

In your main SCSS file, you want to extend this class with:

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

At this point, you might notice that while some properties get inherited correctly, margin-bottom, padding, and possibly font styles do not. This can lead to inconsistencies in your designs. So, what's happening behind the scenes?

Potential Issues and Solutions

1. Ensure the em() function is properly imported

One important aspect to check is whether the em() function itself is correctly imported or defined in your SCSS files. If the function is not recognized, it may lead to properties not being rendered as expected.

Solution: Confirm that the file where the em() function is defined is imported at the beginning of your SCSS files. Always include necessary imports to avoid variables or functions being undefined.

2. Understanding the @ extend behavior

The @ extend functionality in SCSS is extremely powerful, but it's essential to understand that not all properties behave the same way when extended.

Things to Note:

Inherited Properties: Properties like font-size and font-weight will extend correctly as they are associated with text styling.

Box Model Properties: Properties such as margins and paddings may not always inherit as straightforwardly. It’s important to check how those properties are specified in your core class.

CSS Cascade: Be aware of CSS specificity and the cascade rules which might affect the inherited styles.

3. Alternative Methods to Load Styles

If @ extend is causing issues or does not provide the behavior you expect, consider alternative methods for reusing styles:

Mixins: Use mixins to encapsulate styles you want to reuse. This can provide more control and flexibility.

Placeholder Selectors: Create a placeholder selector with % that can be extended throughout your SCSS files. This is particularly useful for styles you want to share without polluting your CSS output.

Example Mixin

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

Conclusion

Loading properties such as padding, margin, and font styles across different SCSS files can be tricky but is manageable with the right approach. Always ensure your functions and variables are imported properly, be mindful of the behavior of @ extend, and utilize mixins or placeholder selectors for greater consistency in your styling. By applying these best practices, you can enhance the maintainability and consistency of your web applications.

Feel free to reach out in the comments if you have further questions or experiences to share about working with SCSS!