`::-webkit-meter-bar` CSS pseudo-element

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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-meter-bar CSS pseudo-element is a WebKit extension that represents the background of a <meter> element. It is used for selecting and applying styles to the container of a meter gauge.

Syntax

::-webkit-meter-bar {
  /* ... */
}

Examples

HTML

Normal: <meter min="0" max="10" value="6">Score 6/10</meter>
<br />
Styled: &nbsp;&nbsp;<meter id="styled" min="0" max="10" value="6">
  Score 6/10
</meter>

CSS

meter {
  height: 30px;
  width: 200px;
  vertical-align: -0.8rem;
}

.safari meter {
  /* Reset the default appearance for Safari only */
  /* .safari class is added via JavaScript */
  -webkit-appearance: none;
}

#styled::-webkit-meter-bar {
  background: lime;
  box-shadow: 0 10px 20px grey inset;
  border-radius: 10px;
}

JavaScript

// Safari requires <meter> elements to have an `appearance` of `none` for custom styling
// using `::-webkit-meter-*` selectors, but `appearance: none` breaks rendering on Chrome.
// Therefore, we must check if the browser is Safari-based.

const isSafari =
  navigator.userAgent.includes("AppleWebKit/") &&
  !navigator.userAgent.includes("Chrome/");

if (isSafari) {
  document.body.classList.add("safari");
}

Result

Specifications

Not part of any standard.

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`-webkit-meter-bar`	12	79	No	15	5.1	18	No	14	5	1.0	4.4	5