the SASS course seems to have quite a lot of problems but on that particular exercise it's worse ( at least for me ). I tried reseting the exercise, refreshing the browser a lot and Nothing changed. I even tried to use " get the code " button but it didn't work, the site said there was a problem. Also, the error message is talking about the height and line-height properties but this part has been done already ( and has been validated by a green check ).
Thanks for your help =).
here is a link to the exercise : https://www.codecademy.com/fr/courses/learn-sass/lessons/functions-and-operations/exercises/arithmetic
Here is the error message I'm getting : Did you assign the .math class height and line-height to be a sixth of the width in main.scss?
Replace this line with your code.
color: red + blue;