Learn CSS Variables by Building a City Skyline - Step 60

You should give .bb3 a background using repeating-linear-gradient. I don’t what i am doing wrong, it is showing the same error.

.bb3 {
  width: 10%;
  height: 55%;
  background-color: var(--building-color3);
  background: repeating-linear-gradient(90deg,
  var(building-color3),
  var(building-color3),
  var(window-color3) 15%);
}

The variable names should start with -- as you have here

background-color: var(--building-color3);


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