HTML-CSS earn-css-variables-by-building-a-city-skyline/step-40

HTML-CSS
1 
.bb1a {
  width: 70%;
  height: 10%;
  background-color: var(--building-color1);
  background: linear-gradient(
    --building-color1, --window-color1
  );
}

I can’t pass this exercise

2

you have to use the var keyword if you want to refer to color variables

3

thank u,
finished …

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