You can add a banner to your website to help your visitors learn about TLS 1.2 . Help your customers help themselves before they can't access your website anymore!
Visitors to your site who already have an up-to-date browser won't see anything, but users with old browsers will get a thin banner at the top of the screen that lets them know there's a problem.
You can change the background color in the banner. Check out:
Copy and paste this script tag into the head element of your page. We'll take care of the rest!