CSS Layers allow for creating different layers within CSS, improving specificity and organization.Text Wrap: Balance feature ensures balanced text layout regardless of page size changes, ideal for headers.Nesting in CSS simplifies organization and readability, especially for media queries and class grouping.Container Queries enable styling elements based on their container size, offering responsive design solutions.Relative Colors offer flexibility in creating different color shades through functions and formulas.Parent Selector (:has()) allows styling of parent elements based on child properties without JavaScript.Defining Custom Properties with @property adds type safety and animatability to custom properties.Subgrid facilitates nested grid layouts by sharing parent grid layout with child elements.Multi-Value Display improves layout handling by separating outer and inner display properties.The display: contents property is useful for creating wrapper elements without affecting layout.