What are some examples of CSS form validation?

Can you show me some examples of CSS form validation?

Sure! CSS can be used to style form elements based on their validation state. For example, you can change the border color of an input field when it's valid or invalid.

How do I change the border color for valid and invalid inputs?

You can use the :valid and :invalid pseudo-classes in your CSS. For instance:

input:valid {
    border: 2px solid green;
}
input:invalid {
    border: 2px solid red;
}

Can I add custom messages for validation?

Yes, you can use the setCustomValidity method in JavaScript to set custom messages for validation errors.

What about styling the submit button based on validation?

You can style the submit button using the same pseudo-classes. For example, you can disable the button if the form is invalid.