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::-moz-range-progress

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-range-progress CSS pseudo-element is a Mozilla extension that represents the lower portion of the track (i.e., groove) in which the indicator slides in an <input> of type="range". This portion corresponds to values lower than the value currently selected by the thumb (i.e., virtual knob).

Note: Using ::-moz-range-progress with anything but an <input type="range"> doesn't match anything and has no effect.

Syntax

::-moz-range-progress

Example

HTML

<input type="range" min="0" max="100" step="5" value="50"/>

CSS

input[type=range]::-moz-range-progress {
  background-color: green;
  height: 1em;
}

Result

A progress bar using this style might look something like this:

Specifications

Not part of any specification. This is a proprietary pseudo-element specific to Gecko.

Browser compatibility

Feature	Firefox (Gecko)	Chrome	Internet Explorer	Opera	Safari
Basic support	(Yes)	No support	No support	No support	No support

Feature	Firefox Mobile (Gecko)	Android	IE Phone	Opera Mobile	Safari Mobile
Basic support	(Yes)	No support	No support	No support	No support