Build a Website and create web-based excel for the site

I want the landing page to include the basic accounting guidance related to the 5 step approach to ASC 606, but in a creative way, not like most boring accounting sites. From the landing page, I want the page to slide from right to left, starting with step 1 with again the necessary verbiage, but hopefully using a .gif that will convey the message (picture is worth a thousand words), then slide to next page for step 2 of 5, structured in the same way, slide to page for step 3 and so on. After the step 5 page, this is where I will want to embed my financial assessment model into something web-based that will be interactive so visitors can enter software contract data on a specific tab in the excel file, ultimately providing them with an assessment of what the accounting figures will look like according to the new revenue accounting guidance. I want the entire site to have a creative, cool, pleasant and attractive look that will pull people into the site, most accounting sites are so boring and dry :) I think this is a good start, Rod