:indeterminate - CSS: Cascading Style Sheets
the :indeterminate css pseudo-class represents any form element whose state is indeterminate, such as checkboxes which have their html indeterminate attribute set to true, radio buttons which are members of a group in which all radio buttons are unchecked, and indeterminate <progress> elements.
... /* selects any <input> whose state is indeterminate */ input:indeterminate { background: lime; } elements targeted by this selector are: <input type="checkbox"> elements whose indeterminate property is set to true by javascript <input type="radio"> elements, when all radio buttons with the same name value in the form are unchecked <progress> elements in an indeterminate state syntax :indeterminate examples checkbox & radio button this example applies special styles to the labels associated with indeterminate form fields.
... html <div> <input type="checkbox" id="checkbox"> <label for="checkbox">this label starts out lime.</label> </div> <div> <input type="radio" id="radio"> <label for="radio">this label starts out lime.</label> </div> css input:indeterminate + label { background: lime; } javascript var inputs = document.getelementsbytagname("input"); for (var i = 0; i < inputs.length; i++) { inputs[i].indeterminate = true; } progress bar html <progress> css progress { margin: 4px; } progress:indeterminate { opacity: 0.5; background-color: lightgray; box-shadow: 0 0 2px 1px red; } result specifications specification status comment html living standardthe definition of ':indeterminate' in that specification.
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UI pseudo-classes - Learn web development
:checked, :indeterminate, and :default: respectively target checkboxes and radio buttons that are checked, in an indeterminate state (neither checked or not checked), and the default selected option when the page loads (e.g.
... radio and checkbox states — checked, default, indeterminate as we've seen in earlier articles in the module, radio buttons and checkboxes can be checked or unchecked.
... :indeterminate: when radios/checkboxes are neither checked nor unchecked, they are considered indeterminate and will match the :indeterminate pseudo-class.
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<input type="checkbox"> - HTML: Hypertext Markup Language
events change and input supported common attributes checked idl attributes checked, indeterminate and value methods select() value a domstring representing the value of the checkbox.
... additional attributes in addition to the common attributes shared by all <input> elements, "checkbox" inputs support the following attributes: attribute description checked boolean; if present, the checkbox is toggled on by default indeterminate a boolean which, if present, indicates that the value of the checkbox is indeterminate rather than true or false value the string to use as the value of the checkbox when submitting the form, if the checkbox is currently toggled on checked a boolean attribute indicating whether or not this checkbox is checked by default (when the page loads).
... indeterminate if the indeterminate attribute is present on the <input> element defining a checkbox, the checkbox's value is neither true nor false, but is instead indeterminate, meaning that it's state cannot be determined or stated in pure binary terms.
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Progress Meters - Archive of obsolete content
there are two types of progress meters: determinate and indeterminate.
... indeterminate progress meters are used when you do not know the length of time of an operation.
... determinate progress meter: indeterminate progress meter: the progress meter has the following syntax: <html:progress id="identifier" mode="determined" value="50" max="100"/> the attributes are as follows: id the unique identifer of the progress meter mode the type of the progress meter.
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nsIOutputStream
exceptions thrown ns_base_stream_would_block indicates that closing the output stream would block the calling thread for an indeterminate amount of time.
... exceptions thrown ns_base_stream_would_block indicates that flushing the output stream would block the calling thread for an indeterminate amount of time.
... exceptions thrown ns_base_stream_would_block indicates that writing to the output stream would block the calling thread for an indeterminate amount of time.
... exceptions thrown ns_base_stream_would_block indicates that writing to the output stream would block the calling thread for an indeterminate amount of time.

::-ms-fill - Archive of obsolete content
only animation-name applies to an indeterminate one.
... (a progress bar is determinate if it has a value attribute set; otherwise it is indeterminate.
... an indeterminate progress bar can be selected with the :indeterminate pseudo-class.) by default, internet explorer and edge display a moving dots animation for an indeterminate progress bar.

HTMLInputElement - Web APIs
indeterminate boolean: returns whether the checkbox or radio button is in indeterminate state.
... for checkboxes, the effect is that the appearance of the checkbox is obscured/greyed in some way as to indicate its state is indeterminate (not checked but not unchecked).
... the following properties have been added: autocomplete, autofocus, dirname, files, formaction, formenctype, formmethod, formnovalidate, formtarget, height, indeterminate, labels, list, max, min, multiple, pattern, placeholder, required, selectiondirection, selectionend, selectionstart, step, validationmessage, validity, valueasdate, valueasnumber, width, and willvalidate.

<progress>: The Progress Indicator element - HTML: Hypertext Markup Language
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: 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').

CSS3 - Archive of obsolete content
new pseudo-classes: :target, :enabled and :disabled, :checked, :indeterminate, :root, :nth-child and :nth-last-child, :nth-of-type and :nth-last-of-type, :last-child, :first-of-type and :last-of-type, :only-child and :only-of-type,:empty, and :not.
... allow the styling of forms according their content using the css :indeterminate, :default, :valid, :invalid, :in-range, :out-of-range, :required, :optional, :read-only, and :read-write pseudo-classes and the ::value, ::choices, ::repeat-item, and ::repeat-index pseudo-elements.

progressmeter - Archive of obsolete content
in addition, an indeterminate progressmeter may be created by setting the mode attribute to undetermined.
... undetermined the progressmeter is indeterminate.

nsIDOMNSHTMLDocument
return value for stateful commands, returns true if the command is in an indeterminate state, false otherwise.
... for instance, if there is a selection and part of the selected text is bold, then then bold command is in an indeterminate state.

nsIInputStream
ns_base_stream_would_block indicates that reading from the input stream would block the calling thread for indeterminate amount of time.
... ns_base_stream_would_block indicates that reading from the input stream would block the calling thread for indeterminate amount of time.

nsITaskbarProgress
state_indeterminate 1 display a cycling, indeterminate progress bar.
...ns_error_invalid_arg if state is state_no_progress or state_indeterminate, and either currentvalue or maxvalue is not 0.

HTMLProgressElement - Web APIs
htmlprogresselement.positionread only returns a double value returning the result of dividing the current value (value) by the maximum value (max); if the progress bar is an indeterminate progress bar, it returns -1.
... htmlprogresselement.value is a double value that reflects the current value; if the progress bar is an indeterminate progress bar, it returns 0.

ARIA: checkbox role - Accessibility
instead use the native html checkbox of <input type="checkbox">, which natively provides all the functionality required: <input type="checkbox" id="chk1-label"> <label for="chk1-label">remember my preferences</label> description the native html checkbox form control can only have two checked states ("checked" or "not checked"), with an indeterminate state settable via javascript.
...this attribute has one of three possible values: true the checkbox is checked false the checkbox is not checked mixed the checkbox is partially checked, or indeterminate tabindex="0" used to make it focusable so the assistive technology user can tab to it and start reading right away.