--- id: 5d822fd413a79914d39e98eb title: Step 35 challengeType: 0 dashedName: step-35 --- # --description-- The skyline is coming together. Fill in the `background-color` property of the foreground buildings. Use your `--building-color1` variable to fill in `.fb3` and `.fb4`, `--building-color2` for `.fb5`, `--building-color3` for `.fb2` and `.fb6`, and `--building-color4` for `.fb1`. # --hints-- You should give `.fb1` a `background-color` using `--building-color4`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb1')?.backgroundColor.trim(), 'var(--building-color4)'); ``` You should give `.fb2` a `background-color` using `--building-color3`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb2')?.backgroundColor, 'var(--building-color3)'); ``` You should give `.fb3` a `background-color` using `--building-color1`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb3')?.backgroundColor, 'var(--building-color1)'); ``` You should give `.fb4` a `background-color` using `--building-color1`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb4')?.backgroundColor, 'var(--building-color1)'); ``` You should give `.fb5` a `background-color` using `--building-color2`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb5')?.backgroundColor, 'var(--building-color2)'); ``` You should give `.fb6` a `background-color` using `--building-color3`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.fb6')?.backgroundColor, 'var(--building-color3)'); ``` # --seed-- ## --seed-contents-- ```html