The <progress>
HTML element displays an indicator showing the completion progress of a task, typically displayed as a progress bar.
The <progress>
HTML element displays an indicator showing the completion progress of a task, typically displayed as a progress bar.
Content categories | Flow content, phrasing content, labelable content, palpable content. |
---|---|
Permitted content | Phrasing content, but there must be no <progress> element among its descendants. |
Tag omission | None, both the starting and ending tag are mandatory. |
Permitted parents | Any element that accepts phrasing content. |
Implicit ARIA role | progressbar |
Permitted ARIA roles | No role permitted |
DOM interface | HTMLProgressElement |
This element includes the global attributes.
max
This attribute describes how much work the task indicated by the progress
element requires. The max
attribute, if present, must have a value greater than 0
and be a valid floating point number. The default value is 1
.
value
This attribute specifies how much of the task that has been completed. It must be a valid floating point number between 0
and max
, or between 0
and 1
if max
is omitted. If there is no value
attribute, the progress bar is indeterminate; this indicates that an activity is ongoing with no indication of how long it is expected to take.
Note: Unlike the <meter>
element, the minimum value is always 0, and the min
attribute is not allowed for the <progress>
element.
Note: The :indeterminate
pseudo-class can be used to match against indeterminate progress bars. To change the progress bar to indeterminate after giving it a value you must remove the value attribute with element.removeAttribute('value')
.
html
<progress value="70" max="100">70 %</progress>
In most cases you should provide an accessible label when using <progress>
. While you can use the standard ARIA labelling attributes aria-labelledby
or aria-label
as you would for any element with role="progressbar"
, when using <progress>
you can alternatively use the <label>
element.
Note: Text placed between the element's tags is not an accessible label, it is only recommended as a fallback for old browsers that do not support this element.
html
<label> Uploading Document: <progress value="70" max="100">70 %</progress> </label> <!-- OR --> <br /> <label for="progress-bar">Uploading Document</label> <progress id="progress-bar" value="70" max="100">70 %</progress>
If the <progress>
element is describing the loading progress of a section of a page, use aria-describedby
to point to the status, and set aria-busy="true"
on the section that is being updated, removing the aria-busy
attribute when it has finished loading.
html
<div aria-busy="true" aria-describedby="progress-bar"> <!-- content is for this region is loading --> </div> <!-- ... --> <progress id="progress-bar" aria-label="Content loading…"></progress>
Specification |
---|
HTML Standard # the-progress-element |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
progress |
6 | 12 | 6["Before Firefox 14, the<progress> element was incorrectly classified as a form element, and therefore had a form attribute. This has been fixed.", "Firefox provides the ::-moz-progress-bar pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far."] |
10 | 11 | 6 | 4.4 | 18 | 6["Before Firefox 14, the<progress> element was incorrectly classified as a form element, and therefore had a form attribute. This has been fixed.", "Firefox provides the ::-moz-progress-bar pseudo-element, which lets you style the part of the interior of the progress bar representing the amount of work completed so far."] |
11 | 7Safari on iOS does not support indeterminate progress bars (they are rendered like 0%-completed progress bars). |
1.0 |
max |
6 | 12 | 6 | 10 | 11 | 6 | 4.4 | 18 | 6 | 11 | 7 | 1.0 |
value |
6 | 12 | 6 | 10 | 11 | 6 | 4.4 | 18 | 6 | 11 | 7 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/HTML/Element/progress