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@viewport.user-zoom

The user-zoom CSS descriptor controls whether or not the user can change the zoom factor of a document defined by @viewport.

/* Keyword values */
user-zoom: zoom;
user-zoom: fixed;

Disabling zooming capabilities prevents people experiencing low vision conditions from being able to read and understand page content.

Related at-rule	`@viewport`
Initial value	`zoom`
Percentages	refer to the size of bounding box
Computed value	as specified

zoom | fixed

@viewport {
  user-zoom: fixed;
}

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

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
`user-zoom` descriptor	29 — 84	12 Prefixed 12 Prefixed Prefixed Implemented with the vendor prefix: -ms-	No	10 Prefixed 10 Prefixed Prefixed Implemented with the vendor prefix: -ms-	16	No

	Mobile
	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`user-zoom` descriptor	No	29 — 84	No	16	No	2.0