... to adjust. Smooth transitions reduce the effort it takes for users to get settled into a new environment. Javascript SPA frameworks, sometimes referred to as MVC frameworks, are a common way to solve this issue. These frameworks often lose the benefits of unobtrusive code. Writing unobtrusive javascript gives us more resilience to errors, and improved performance and accessibility. smoothState.js provides hooks that can be used to choreograph how elements enter and exit the page during navigation.