`::-webkit-meter-inner-element` CSS pseudo-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.

::-webkit-meter-inner-element is a proprietary WebKit CSS pseudo-element for selecting and applying styles to the outer containing element of a <meter> element. Additional markup to render the meter element as read-only.

Syntax

::-webkit-meter-inner-element {
  /* ... */
}

Examples

This will only work in WebKit and Blink-based browsers, such as Safari, Chrome, and Chromium-based versions of Edge.

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

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-inner-element {
  -webkit-appearance: inherit;
  box-sizing: inherit;
  border: 1px dashed #aaaaaa;
}

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-inner-element`	23	79	No	15	7	25	No	14	7	1.5	4.4	7