How to change the address display for a component?

Question

Web development

How to use urlrewrite.php to change the address in the directory component from
site.dev/catalog/cat1/cat2/cat3/1/
to
site.dev/catalog/cat1/cat2/1/

Answer 1

play around with spacing values, and like this
https://codepen.io/anon/pen/xNxNKw?editors=1010

Answer 2

I would implement via svg + animation gradient