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 ::-moz-progress-bar
CSS pseudo-element is a Mozilla extension that represents the progress bar inside a <progress>
element. (The bar represents the amount of progress that has been made.)
::-moz-progress-bar
<progress value="30" max="100">30%</progress> <progress max="100">Indeterminate</progress>
::-moz-progress-bar { background-color: red; } /* Force indeterminate bars to have zero width */ :indeterminate::-moz-progress-bar { width: 0; }
The first bar from above should look like this:
<progress>
::-ms-fill
::-webkit-progress-bar
::-webkit-progress-value
::-webkit-progress-inner-element
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/::-moz-progress-bar