CSS background-position edge offsets

Allows CSS background images to be positioned relative to the specified edge using the 3 to 4 value syntax. For example: `background-position: right 5px bottom 5px;` for positioning 5px from the bottom-right corner.

CSS Environment Variables env()

Usage of environment variables like `safe-area-inset-top`.

css at-rule: `@page`: `@bottom-right` page-margin box

css at-rule: `@page`: `@bottom-right-corner` page-margin box

css at-rule: `@page`: `@right-bottom` page-margin box

css property: background-position: side-relative values (such as `bottom 10% right 20%`)

css property: border-bottom-right-radius

css property: border-bottom-right-radius: elliptical corners

css property: border-bottom-right-radius: percentages

css property: corner-bottom-right-shape

css property: corner-bottom-right-shape: bevel

css property: corner-bottom-right-shape: notch

css property: corner-bottom-right-shape: round

css property: corner-bottom-right-shape: scoop

css property: corner-bottom-right-shape: square

css property: corner-bottom-right-shape: squircle