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Mastering CSS is a fundamental requirement for any front-end or full stack developer. It is a complex field, and browser compatibility is often a challenge. The CSS Working Group periodically updates the CSS specifications to add more functionality, making styling web documents easier and creating exciting learner experiences. 

In this course, you’ll cover several new properties and selectors in layout and responsive design. Next, you’ll learn about the :has() selector and container queries and their use cases. Finally, you’ll learn to create responsive layouts without media queries. Throughout the course, you’ll discuss each new feature’s browser compatibility.

After completing this course, you’ll have the practical knowledge to create responsive layouts and engaging user experiences with a few lines of code. You can write less code to do more, utilizing several new properties and selectors efficiently. This skill set will help you create great user experiences.

Mastering the Latest Features in CSS

Which element does the `:has()` pseudo-class style?

Which element does the <code>:has()</code> pseudo-class style?

How is the `:has()` pseudo-class usually called?

How is the <code>:has()</code> pseudo-class usually called?

If an invalid selector or a prefixed selector that doesn't apply is in the list, the whole rule will be thrown out and not applied.

If an invalid selector or a prefixed selector that doesn’t apply is in the list, the rule will continue to work for the valid selectors.

If an invalid selector or a prefixed selector that doesn’t apply is in the list, the rule will continue to work for the precedent selectors.

If an invalid selector or a prefixed selector that doesn’t apply is in the list, the rule will continue to work for the remaining selectors.

The`:has()` isn't a forgiving selector. What does this mean?

The<code>:has()</code> isn’t a forgiving selector. What does this mean?

Is it possible to nest the `:has()` pseudo-class within another `:has()`?

Is it possible to nest the <code>:has()</code> pseudo-class within another <code>:has()</code>?

The `:has()` pseudo-class itself doesn’t add any specificity weight to the selector.

The specificity of `:has()` is equal to the highest specificity selector in the selector list.

`:has(#title, h1, .headline)` will have the specificity afforded to the `#title` ID.

Test your understanding of :has() selector for scaling reusable components.

Getting Started

What You’ve Missed in CSS

Using the :has() Selector for Scaling Reusable Components

Practical Uses of Container Queries

Responsive CSS Layout without Media Queries

Conclusion

Quiz: Using the :has() Selector for Scaling Reusable Components