How to set a margin between slick slides, but remove them from the first and last ones shown?

Question

css

I'm trying to make a slider with three slides using slick slider. According to the layout, you need to make sure that there are indents between slides, but there is no left indent for the first one shown and no right indent for the last one. That is, you need it like this:

screen

If you just set a margin for each item, then it turns out like this:

screen

That is, you need to remove these indents so that the slides increase in width to the vacated space:

screen

How can this be done?
Thanks in advance.
codepen
PS I tried to set .slick-active margin-right to 60px and remove the margin from the first and last, but then everything generally breaks

Answer 1

So?