The :right CSS page pseudo-class matches any right page when printing a page. It allows to describe the styling of right-side page.
The marks CSS at-rule descriptor adds crop and/or cross marks to the presentation of the document. Crop marks indicate where the page should be cut. Cross marks are used to align sheets.
The user-zoom CSS descriptor controls whether or not the user should be able to change the zoom factor of a document defined by @viewport.
The zoom CSS Descriptor sets the initial zoom factor of a document defined by @viewport.
The background-position-x CSS property sets the initial horizontal position, relative to the background position layer defined by background-origin for each defined background image. For more information, see the background-position property, which has been widely supported.
See Flexbox for more information on what you should be using instead of this property.
The column-fill CSS property controls how contents are partitioned into columns. Contents are either balanced, which means that contents in all columns will have the same height or, when using auto, just take up the room the content needs.
CSS Masks is a CSS module that defines means, including masking and clipping, for partially or fully hiding portions of visual elements.
The mask-composite CSS property represents a compositing operation used on the current mask layer with the mask layers below it.
The mask-image CSS property sets the image that is used as mask layer for an element.
The mask-repeat CSS property defines how mask images are repeated. A mask image can be repeated along the horizontal axis, the vertical axis, both axes, or not repeated at all.
The CSS mask-type properties defines if a mask is used as a luminance or an alpha mask.
A media query consists of an optional media type and zero or more expressions that limit the style sheets' scope by using media features, such as width, height, and color. Media queries, added in CSS3, let the presentation of content be tailored to a specific range of output devices without having to change the content itself.
The -moz-binding CSS property is used by Mozilla-based applications to attach an XBL binding to a DOM element.