Doesn't Understand Sass Indented Syntax

Using Sass `<style lang="sass">...` requires the use of indented syntax like this:

```sass
.center
  position: absolute
  left: 50%
  top: 50%
  transform: translate(-50%, -50%)
```

but Emacs keeps forcing the indentation to be like
```sass
.center
position: absolute
left: 50%
top: 50%
transform: translate(-50%, -50%)
```