gistfile1.txt

&.offwhite-btn {
  background-color: $offwhite;
  color: #000;
  
  &:hover {
    background-color: #YOYOYO;
    color: #HEYHEY;
  }
}

can also do shit like this:

&.offwhite-btn {
  background-color: $offwhite;
  color: #000;
  
  &:hover {
    background-color: darken($offwhite, 10%);
    color: lighten(#000, 50%);
  }
}