Have you forgotten to design '404 page'? The 404 page is alw...

Have you forgotten to design '404 page'?

The 404 page is always the page with a very boring and similar UI design.

But for me, it's a great chance to have some playing time in my everyday work, because you can put all your imagination and creating something unusual and special with just three letters and a small animation trick, but users will be so satisfied to see it, rather than closing the website because they don't know how to reach their goals.