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.
Summary
The ::-webkit-meter-optimum-value pseudo-element styles the meter element when its value is inside the low-high range.
Green is the default color.
Specifications
Not part of any specification. This is a proprietary pseudo-element specific to WebKit/Blink.
Examples
<meter min="0" max="10" value="6">Score out of 10</meter>
meter::-webkit-meter-bar {
/* Required to get rid of the default background property */
background : none;
background-color : whiteSmoke;
box-shadow : 0 5px 5px -5px #333 inset;
}
meter::-webkit-meter-optimum-value {
box-shadow: 0 5px 5px -5px #999 inset;
}
Note: This will only work in Webkit/Blink-based browsers.
Browser compatibility
| Feature | Firefox (Gecko) | Chrome | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | (Yes) | No support | (Yes) | (Yes) |
See also
The pseudo-elements used by WebKit/Blink to style other parts of a <meter> element are as follows: