Wordpress how to display ::before in ul li and ol li?

Question

WordPress

Hello, I have such a problem, I decided to improve the design.
BUT ul li and ol li do not display ::before. How can I make the pseudo-element appear automatically.
I have it like this:

And I need it to be like this:

Answer 1

Likely to register such pseudo-element in styles.
a:befote {content:"";other styles}

Answer 2

No it didn't help :(