What are you trying to do that you can't?

I found that there's a lot of mysterious dots behind these examples' name with different numbers, but I did not find any explanation to these different lengths of dots.
What is your idea?
We can have an explanation for different numbers of dots at the top of the web page
What are you trying to do that you can't?
What is your idea?
We can have an explanation for different numbers of dots at the top of the web page