SASS CSS is a bug, am I new?

Question

Sass

Hello everyone) for the first time here on the toaster, I’m studying HTML CSS layout and now I’ve reached the SASS preprocessor using Artem Islamov’s video tutorials, in general, such a problem can someone meet when setting a color variable and assigning it an error

$color:#aeaeae

.header
 &__title
  font-size: 20px
  color:$color

Error: Invalid CSS after "color:": expected pseudoclass or pseudoelement, was "$color"
on line 6 of C:\Users\Qwerty\Desktop\web\example\sass\main.sass
what did I do wrong?)) )

Answer 1

They just didn't add a space after the colon
. The error was both in creating a variable and in using it.