This element doesn't fulfill the styleguides definitions especially on the option elements styling, as this isn't possible x-browser without JavaScript. If you would like to even also match those visual requirements, you would need to choose a progressive JavaScript solution on your own.
Please have a look especially at the section for form validation within the overall components/forms page.
Additionally to the browser built-in pseudo-selector :user-invalid we're providing styling for the aria-invalid="true" attribute as well.