[css] What's the difference between SCSS and Sass?

Original sass is ruby syntax-like, similar to ruby, jade etc...

In those syntaxes, we don't use {}, instead we go with white spaces, also no usage of ;...

In scss syntaxes are more like CSS, but with getting more options like: nesting, declaring, etc, similar to less and other pre-processing CSS ...

They basically do the same thing, but I put couple of lines of each to see the syntax difference, look at the {}, ;, and spaces:

SASS:

$width: 100px
$color: green

div
  width: $width
  background-color: $color

SCSS:

$width: 100px;
$color: green;

div {
  width: $width;
  background-color: $color;
}