New CSS that can actually be used in 2024
Briefly

The introduction of logical properties in CSS addresses the challenges of directional layout for websites, improving user experience by allowing design elements to adapt based on text direction.
Recent updates in CSS have been numerous, yet they often lead to confusion due to unclear support across different browsers, making developers wary of adopting new features.
While it's essential to stay updated with CSS advancements, the overwhelming pace of new releases can lead to frustration when many features are still in experimental stages.
Container queries in CSS present a new way to create responsive designs, enabling developers to set styles based on the size of a containing element rather than the viewport.
Read at Thomasorus's Wiki
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