In this episode, Scott and Wes discuss the arrival of CSS nesting, its advantages in simplifying code, and improving coding efficiency. They explore the concept of CSS nesting, its implementation in different browsers, and its compatibility with media queries. They also compare CSS nesting to Sass, discuss the limitations and benefits of both, and touch on the role of jQuery in web development. The hosts speculate on the potential widespread adoption of Lightning CSS and its experimental support for CSS nesting.
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Quick takeaways
CSS nesting allows for simplified and efficient styling by nesting selectors inside each other, eliminating the need for long and repetitive selectors.
CSS nesting offers advantages over using Sass, such as leveraging standardized CSS, providing live variables, enabling container queries, simplifying style scoping, and not requiring compiling.
Deep dives
CSS Nesting Syntax and Benefits
CSS nesting allows for simplified and more efficient styling by nesting selectors inside each other. This feature eliminates the need for writing long and repetitive selectors, making the code more concise and readable. Nesting works by applying styles to a parent selector and then nesting additional selectors inside it. The ampersand symbol '&' is used as a reference to the parent selector, allowing for easy extension of styles. Nesting can also be used with media queries and container queries, making it adaptable to different screen sizes. CSS nesting is a syntax-based feature, meaning it can be transpiled and used in all browsers through PostCSS or similar tools.
Benefits over Sass
CSS nesting offers several advantages over using Sass. Firstly, it leverages standardized CSS and tools, avoiding the need for additional dependencies. It provides live variables, enabling the use of dynamic values in styles. Container queries can be easily implemented using CSS nesting, allowing for responsive design at the component level. Additionally, CSS nesting simplifies the scoping of styles, making it easier to reason about the code structure. Unlike Sass, CSS nesting is not a preprocessor and does not require compiling, making it faster and more straightforward to implement.
Support and Lightning CSS
CSS nesting can be used today, as it can be transpiled to CSS that is supported in all browsers. PostCSS is commonly used to transpile the code. Furthermore, there is an experimental support for CSS nesting in the Lightning CSS library, which is gaining popularity. Lightning CSS, developed by Devin, the creator of Parcel, offers an alternative to PostCSS and allows for improved development workflows. The experimental support for CSS nesting in Lightning CSS is expected to be further enhanced in the future.
In this Hasty Treat, Scott and Wes talk about the arrival of CSS nesting. What is CSS nesting? How does CSS nesting work? And does it work in all browsers?