W3cubDocs

/CSS

::-webkit-progress-inner-element

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 ::-webkit-progress-inner-element CSS pseudo-element represents the outermost container of the <progress> element. It is the parent of the ::-webkit-progress-bar pseudo-element.

Note: In order to let ::-webkit-progress-value take effect, -webkit-appearance needs to be set to none on the <progress> element.

Example

HTML

<progress value="10" max="50">

CSS

progress {
  -webkit-appearance: none;
}

::-webkit-progress-inner-element {
  border: 2px solid black;
}

Result

A progress bar using the style above would look like this:

Specifications

Not part of any specification. This is a proprietary pseudo-element specific to WebKit/Blink.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	Yes	No	No	No	Yes	Yes

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	Yes	Yes	No	No	Yes	Yes	?