@viewport.zoom

The zoom CSS Descriptor sets the initial zoom factor of a document defined by @viewport.

A zoom factor of 1.0 or 100% corresponds to no zooming. Larger values zoom in. Smaller values zoom out.

Related at-rule	@viewport
Initial value	auto
Percentages	the zoom factor itself
Media	visual, continuous
Computed value	auto, or a non-negative number or percentage as specified
Canonical order	the unique non-ambiguous order defined by the formal grammar

Syntax

/* Keyword value */
zoom: auto;

/* <number> values */
zoom: 0.8;
zoom: 2.0;

/* <percentage> values */
zoom: 150%;

Values

auto

The user agent will set the document's initial zoom factor. The user agent may use the size of the area of the canvas on which the document is rendered to find that factor.

<number>

A non-negative number used as zoom factor. A factor of 1.0 means that no zooming is done. Values larger than 1.0 result in a zoomed-in effect and values smaller than that in a zoomed-out effect.

<percentage>

A non-negative percentage value used as a zoom factor. A factor of 100% means that no zooming is done. Values larger than 100% result in a zoomed-in effect and values smaller than that in a zoomed-out effect.

Formal syntax

auto | <number> | <percentage>

Specifications

Specification	Status	Comment
CSS Device Adaptation The definition of '"zoom" descriptor' in that specification.	Working Draft	Initial specification

Browser compatibility