City Skyline Step #40 linear-gradient

I’m having an issue with step #40 the error is asking me to add a background to the bb1a class element. I have a background property with a linear-gradient function and added the variables. I tried looking up the linear-gradient function, but it’s asking me to add a background to bb1a.

here is my css code so far:

.bb1a {
width: 70%;
height: 10%;
background-color: var(–building-color1);
background: linear-gradient(–building-color1, --window-color1);
}

From what I see you’ve forgotten to call the variable with the var function within your linear-gradient function.

.bb1a {
width: 70%;
height: 10%;
background-color: var(–building-color1);
<!--  Look below here -->

background: linear-gradient(–building-color1, --window-color1);

<!-- Look above here -->
}