How to put the point in a numbered list after the number?

Guys, please tell me how to put a period after the number in a numbered list?
Code:
https://jsfiddle.net/efendi/04ar0xf0/3/
June 8th 19 at 17:13

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3 answers
June 8th 19 at 17:15
Solution
https://jsfiddle.net/SAnhPa/04ar0xf0/4/
content: counter(li, decimal) ".";
June 8th 19 at 17:17
Probably, it is necessary to remove the list styles and numbered list point by themselves and appear. OL>LI is numerology list.

PS
Either :before or :after connecting to.
June 8th 19 at 17:19
https://jsfiddle.net/04ar0xf0/5/
And that's not right?
Or so
https://jsfiddle.net/04ar0xf0/6/
And you can still so
https://jsfiddle.net/04ar0xf0/7/

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