#### What is SASS?

SASS has two syntaxes, whereas the oldest one is SASS created by Haml’s terseness who prefer conciseness over similarity to CSS. SASS uses the extension`.sass`.

#### What is SCSS?

SCSS is the most commonly used version of SASS syntaxes and is a superset of CSS3 syntaxes. It uses `.scss` extension.

#### Which one will we use?

In this course, we will `.scss` but the functions are the same. In the next lecture, you will learn how to install SASS and I will also provide an example of both SASS and SCSS code to give you an idea of the difference between SCSS and SASS syntax.

#### What does SASS stand for?

SASS stands for Syntactically awesome style sheets.