How to get the parent element using SASS?

Question

Sass

Hello, tell me please.
There is a code:

.parent {
        color: red;
    }

<div class="parent">
    <span class="child">Hello World!!!</span>
</div>

Question: how can I use sass to refer EXACTLY to the .child element, take its parent and in the parent EXACTLY for the .child element change the color, for example, to green?

Answer 1

Like this jsfiddle.net/bdz2zyx2 ?
Get .parent .child { }

Answer 2

Didn't understand the question? Are you talking about the ampersant

.parent {
  & .child {
       color: red;
  }