# SASS Ampersands

One of the many reasons I love working at Scalefactor is that I get to work extensively both in the front-end and the back-end. That being said at the moment, the back-end is my stronger suit. That is why you might see a lot more front-end related posts here as I try to level up in that area. Going back to SASS. Here is something small I learned today. Borrowing the explanation below from CSS-Tricks.

Here is a simple nesting example that works in SASS:

.parent {
  .child {}

Which is compiled to in css:

.parent .child {}

What about when we use an &

.first-parent {
  &.second-parent {}

Which is compiled to in css:

.first-parent.second-parent {}

The difference between the two is that in the second example we are selecting an element that has both classes: first-parent and second parent.

I like to think of & as copying the parent selector and pasting it next to the child selector. This gets interesting when used along with BEM CSS Methodology— Block Element Modifier. More on that later.

There are a lot more uses of & in sass. This article in CSS-Tricks does an amazing job explaining everything.

Thank you for reading!

Last Modified: 1/5/2021, 2:07:29 PM