The indeterminate pseudo-class

The indeterminate pseudo-class defines a style of switches that are in an indeterminate state, i.e. not checked.

Syntax

cssselector:indeterminate {
  
}

Example

Let's recolor the text font green when the checkbox is in an indeterminate state:

html<form>
  <p>
    <input type="checkbox">
      <span>Text</span>
  </p>
</form>

cssinput:indeterminate, input:indeterminate + span {
  color: green;
}
input, span {
  color: black;
}

javascriptdocument.getElementsByTagName('input')[0].indeterminate = true;

Результат:

See also