The optional pseudo-class

The optional pseudo-class specifies the style of an input that does not have the required attribute specified, i.e. this pseudo-class applies to optional inputs.

Syntax

cssselector:optional {

}

Example

Let's give the optional input a gray background:

html<form>
  <p>
    <label>Enter number</label>
    <input type="number" required>
  </p>
  <p>
    <label>Enter text</label>
    <input type="text">
  </p>
</form>

cssinput:optional {
  background-color: #D8DFE8;
}

Результат:

See also