CSS - ::-webkit-progress-bar

The ::-webkit-progress-bar CSS pseudo-element represents the entire bar of a <progress> element. Normally it's only visible as the unfilled portion of the bar, since by default it's rendered below the ::-webkit-progress-value pseudo-element. It is a child of the ::-webkit-progress-inner-element pseudo-element and the parent of the ::-webkit-progress-value pseudo-element.

Example

CSS content

progress {
  -webkit-appearance: none;
}

::-webkit-progress-bar {
   background-color: orange;
}

HTML content

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

Output

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

Description  

The ::-webkit-progress-bar CSS pseudo-element represents the entire bar of a <progress> element. Normally it's only visible as the unfilled portion of the bar, since by default it's rendered below the ::-webkit-progress-value pseudo-element. It is a child of the ::-webkit-progress-inner-element pseudo-element and the parent of the ::-webkit-progress-value pseudo-element.

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

Browser Compatibility  

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

See Also  

Specifications  

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

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/css/::-webkit-progress-bar