https://www.w3schools.com/tags/tag_doctype.asp
https://www.w3.org/html/
https://www.w3.org/TR/html52/
https://www.w3.org/TR/html53/ 
https://www.w3.org/standards/techs/html#w3c_all
https://www.w3schools.com/tags/default.asp 
https://www.w3schools.com/tags/ref_standardattributes.asp
Statcounter: https://gs.statcounter.com/browser-market-share
W3schools: https://www.w3schools.com/browsers/default.asp
https://www.w3schools.com/tags/tag_meta.asp
https://gist.github.com/lancejpollard/1978404
https://www.w3schools.com/tags/ref_byfunc.asp
https://www.w3schools.com/w3css/tryw3css_templates_portfolio.htm#portfolio
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types#common_image_file_types
https://www.w3schools.com/html/html_images_imagemap.asp
https://www.w3schools.com/howto/howto_css_modal_images.asp
https://www.w3schools.com/cssref/playit.asp?filename=playcss_filter&preval=hue-rotate(90deg)
https://www.w3schools.com/html/html_tables.asp
https://www.w3schools.com/html/html_lists.asp
https://www.w3schools.com/tags/ref_byfunc.asp









