Change the page's background color to 4 different colors and you can click a block to make it changing color. Change a webpage's background color to 4 different colors to protect your eyes from the intensity of light colors. We hope you enjoy our products as much as we enjoy offering them to you. If you have any questions or comments, please don’t hesitate to contact us. https://nerdyradar.com/ https://www.facebook.com/nerdyradar/ https://twitter.com/NerdyRadar https://www.linkedin.com/in/NerdyRadar https://www.myspace.ge/nerdyradar/ https://www.pinterest.com/nerdyradar https://www.youtube.com/channel/UCaUMnmusO4riTzVv65gYepA/about?disable_polymer=1 Regards, Nerdy Radar