Display nested list like a table

Question

There is a nested list, which looks like this:

Main-Title
    Title 1
        Element 1
        Element 2
        Element 3
    Title 2
        Element 4
         


        

Answer 1

yes, reset sub li display:

li {
  display: inline-flex;
}
li li {
  display:flex;
}

https://jsfiddle.net/mkc4uh9y/2/