:-moz-system-metric(scrollbar-start-backward)

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The :-moz-system-metric(scrollbar-start-backward) CSS pseudo-class will match an element if the computer's user interface includes a backward arrow button at the start of scrollbars.

This selector is intended for use mainly by theme developers.

Note: Since Firefox 58, this pseudo-class is no longer available to web content — it is only available internally (e.g. to XUL / chrome code). See bug 1396066 for more details.

Specifications

Not part of any specification.

Browser compatibility

No compatibility data found. Please contribute data for "css.selectors.-moz-system-metric.scrollbar-start-backward" (depth: 1) to the MDN compatibility data repository.