How to change the transision effect?

I searched internet and found that can change the transition effect of the slideshow in opencart old versions.

But how in opencart 3.0.2.0 or above?

You could try This

cyclops12 wrote: ↑

Mon Feb 18, 2019 2:17 am

You could try This

Thank a lot!

I've added as in the link page, but nothing changed.

It works on my default 3.0.2.0 version.
Are you using default theme ?
What exactly did you change ?