Right now I'm using basic html to make a basic website. The goal is a simple website with text, clickable picture thumbnails that open up to large size images, and basically links around. I eventually want to add a Google or Paypal checkout.
The thing is, I don't know if I'm making a mistake here--I don't want to make a lot of progress and then realize that I should have started out using flash or CSS or something fancy that I don't know of, because my site doesn't work well on certain browsers or on iPhones or whatever. What do you think? What tools should I learn and use?
In the meantime, I'm not sure how I should structure the files that my website is made out of. I have an index.html file and all the rest of the page files all sitting in the same directory. I have a folder in that directory that all my images are in. I think the stoneage thing to do is use ImageMagik to create a bunch of thumbnails, and make it so when you click the thumbnail image you go to a page with nothing but the large version. I want to keep it all sorted though. I don't know if I should make a separate thumbnail directory in the same folder with the html files, or make it a subdirectory of the images folder, or what.