The difference between Less and Sass are :
Less :* It uses JavaScript and client-side.
* It is processed at client side.
* It uses
@symbol
to declare variable.
* It doesn’t inherit multiple selectors.
* It doesn’t work with unknown units.
Sass :
* It uses ruby and processed at server-side.
* It is processed at server side.
* It uses $symbol
to declare variable.
* It inherits multiple selectors.
* It allows us to work with unknown units.