Pure HTML+CSS websites are, of course, way easier to code than ones with heavy Javascript (Assuming we're talking about hand-coded websites, and absent other fa

Pure HTML+CSS websites are, of course, way easier to code than ones with heavy Javascript (Assuming we're talking about hand-coded websites, and absent other factors like the developer's personal familiarity.) But there's also things you can't do without Javascript. For example, if you want a fade-in animation to play when the user scrolls to a certain spot on the page, you'll probably want to calculate the user's scroll position with Javascript. If you don't address the no-JS case specifically, the element will never fade-in for users without Javascript!