Why doesn't hover work on a child element in sass?

Question

css

Why does hover not work on a child element in sass
https://jsfiddle.net/oqd45263/
This works, but changes the block

.author__info
  cursor: pointer

  &:hover
    border: 2px solid red

And when you try to change the styles of a child element, it does not change

.author__info
  cursor: pointer

  &:hover > .author__name
    border: 2px solid red

Answer 1