Grid lesson#64 - "spaces not working"

HTML-CSS
#1

There is no difference between:

.quote::before {
  content: '" ';
}

.quote::after {
  content: ' "';
}
and 
.quote::before {
  content: '"';
}

.quote::after {
  content: '"';
}

spaces not working

#2

You’re gonna have to provide more complete context for us to fully understand what you mean and what help you need.

#3

In Step 64 i need to:

Create a .quote::before selector and set the content property to " with a space following it.

Also, create a .quote::after selector and set the content property to " with a space preceding it.

no difference in preview between:
  • im doing with spaces

  • im doing without spaces

I just don’t understand the need of “spaces”