Rendering three vertical dots using SCSS
What you're looking for is just &amp;:

  div {
    position: relative;
    &amp;, &amp;:after, &amp;:before {
      border-radius:100px;
      background-color:gray;
      width:.5rem;
      height:.5rem;
    }
    &amp;:after, &amp;:before {
      content: '';
      position: absolute;
      display: inline-block;
    }
    &amp;:after {
      top: -1rem;
    }
    &amp;:before {
      top: 1rem;
    }
  }