::-webkit-progress-bar - CSS: Cascading Style Sheets 编辑

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

Syntax

::-webkit-progress-bar

Examples

CSS content

progress {
  -webkit-appearance: none;
}

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

HTML content

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

Result

Result screenshot

If you're not using a WebKit or Blink browser, the code above results in a progress bar that looks like this:

Specifications

Not part of any standard.

Browser compatibility

BCD tables only load in the browser

See also

• The pseudo-elements used by WebKit/Blink to style other parts of a <progress> element:
  • ::-webkit-progress-value
  • ::-webkit-progress-inner-element
• ::-moz-progress-bar
• ::-ms-fill