Learn CSS Variables by Building a City Skyline - Step 108

Showing Error
You should give the second repeating-linear-gradient a first color of --building-color3 from 0% to 10%.

.fb6 {
  width: 9%;
  height: 38%;
  background-color: var(--building-color3);
  background: repeating-linear-gradient(
    90deg,
    var(--building-color3),
    var(--building-color3) 10%,
    transparent 10%,
    transparent 30%
  ),
  repeating-linear-gradient(
    90deg,
    var(--building-color3),
    var(--building-color3) 10%,
    var(--window-color3) 10%,
    var(--window-color3) 30%)
}

From the instructions:

“… except don’t add the 90deg direction …”