::-webkit-meter-bar

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 meter bar in a <meter> element. It is used for selecting and applying styles to the container meter gauge.

Syntax

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

Specifications

Not part of any standard.

Examples

HTML

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

CSS

css
body {
  font-family: monospace;
}

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

#styled::-webkit-meter-bar {
  background: #eee;
  box-shadow: 0 2px 3px rgb(0 0 0 / 20%) inset;
  border-radius: 3px;
}

JavaScript

js
// 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 is_safari =
  navigator.userAgent.includes("AppleWebKit/") &&
  !navigator.userAgent.includes("Chrome/");

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

Result

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
::-webkit-meter-bar
Non-standard

See also