@viewport.max-zoom

The max-zoom CSS descriptor sets the maximum zoom factor of a document defined by the @viewport at-rule. The browser will not zoom in any further than this, whether automatically or at the user's request.

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 */
max-zoom: auto;

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

/* <percentage> value */
max-zoom: 150%;

Values

auto

The user agent will set the document's upper zoom factor limit.

<number>

A non-negative number limiting the maximum value of the zoom factor.

<percentage>

A non-negative percentage limiting the maximum value of the zoom factor.

Formal syntax

auto | <number> | <percentage>

Specifications

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

Browser compatibility