Don't attempt to write the style and html code for slideshows using only CSS and no javascript until you are extremely familiar with styling and coding. You are welcome to use this program if you wish. Merely change the names of the slides to the names of those you wish to show. You may wish to change the time each slide shows from the 8 seconds (8000 milliseconds as styled) I chose. You can also likely find a better no-javascript program than this one for slideshows.