Web designers use page transitions to animate the changes between two pages, to provide visual continuity to the user. It’s a nice UX to let the user know that a new section is loading.
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A simple portfolio template with some motion effects. You can use this to show a list of projects you have worked on and on click it reveals more information...
Check out this experimental page scroll effects using Velocity.js by Claudia Romano. There are many different options in there. Which one is your favorite?