HTML Tutorial
https://bloggerslider.shuvojitdas.com/2013/02/add-javascript-image-slider-to-blogger.html
https://www.aturntolearn.com/how-to-put-pictures-side-by-side-in/
https://www.youtube.com/watch?v=ud5RAtBJisE
https://www.youtube.com/watch?v=Rc08QKzpbKs
https://helplogger.blogspot.com/2012/05/create-rollover-image-effect-change.html