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The indeterminate pseudo-class

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

Syntax

selector:indeterminate {
	
}

Example

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

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

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

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

:

See also

the :default pseudo-class
that sets a default style for elements
the :optional pseudo-class
that sets a style for the input that does not have a required attribute
the :placeholder-shown pseudo-class
that sets a style for elements when displaying tooltip text
the :read-only pseudo-class
that sets a style for inputs that cannot be changed
the :required pseudo-class
that sets a style of the input that has the required attribute set
the :focus-within pseudo-class
that styles the elements in focus
the caret-color property
that sets a color of the text cursor in input

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