CSS References
http://www.csszengarden.com/https://matthewjamestaylor.com/add-css-to-html
https://www.w3schools.com/html/html_classes.asp
https://css-tricks.com/complete-guide-table-element/
https://www.w3schools.com/css/css_website_layout.asp
https://developer.mozilla.org/en-US/docs/Learn/CSS/First_steps/Getting_started
https://css-tricks.com/comparing-various-ways-to-hide-things-in-css/