I can't create a variable and templates in my scss file in SublimeText, what's the problem?

Question

css

I write $variablename and it is not highlighted and in css it is compiled as a regular word. Syntax for sass set, what could be the problem? Here is an example code in scss:
$vtp:#cf3434;
body{
background-color: vtp;
}

and this is how it compiles to css:
body {
background-color: vtp; }

Thank you in advance for your reply .

Answer 1

body {
  background-color:  $vtp; /* Забыли знак доллара $ */
}