W3cubDocs

/CSS

:indeterminate

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:

Syntax

:indeterminate

Examples

Checkbox & radio button

This example applies special styles to the labels associated with indeterminate form fields.

HTML

<fieldset>
  <legend>Checkbox</legend>
  <div>
    <input type="checkbox" id="checkbox" />
    <label for="checkbox">This checkbox label starts out lime.</label>
  </div>
</fieldset>

<fieldset>
  <legend>Radio</legend>
  <div>
    <input type="radio" id="radio1" name="radioButton" value="val1" />
    <label for="radio1">First radio label starts out lime.</label>
  </div>
  <div>
    <input type="radio" id="radio2" name="radioButton" value="val2" />
    <label for="radio2">Second radio label also starts out lime.</label>
  </div>
</fieldset>

CSS

input:indeterminate + label {
  background: lime;
}

JavaScript

const inputs = document.getElementsByTagName("input");

for (let i = 0; i < inputs.length; i++) {
  inputs[i].indeterminate = true;
}

Result

Progress bar

HTML

<progress></progress>

CSS

progress {
  margin: 4px;
}

progress:indeterminate {
  width: 80vw;
  height: 20px;
}

Result

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
:indeterminate 1 12 2 10 9 3 ≤37 18 4 10.1 1 1.0
checkbox 1 12 3.6 10 10.6 3 ≤37 18 4 11 1 1.0
progress 6 12 6 10 15 5.1 37 18 6 14 5 1.0
radio 39 79 51 No 26
NoSee WebKit bug 156270.
39 39 51 26
NoSee WebKit bug 156270.
4.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/:indeterminate