--- id: 5d822fd413a79914d39e98e0 title: Step 24 challengeType: 0 dashedName: step-24 --- # --description-- Create a new variable below the other ones named `--building-color3` and give it a value of `#cc6699`. Then use it as the `background-color` of the `.bb3` class and give it a fallback value of `pink`. # --hints-- You should define a new property variable called `--building-color3`. ```js assert.exists(new __helpers.CSSHelp(document).isPropertyUsed('--building-color3')); ``` You should give `--building-color3` a value of `#66cc99`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.bb1')?.getPropertyValue('--building-color3')?.trim(), '#cc6699'); ``` You should set the `background-color` of `.bb3`. ```js assert.exists(new __helpers.CSSHelp(document).getStyle('.bb3')?.backgroundColor); ``` You should set the `background-color` using the `--building-color3` variable with a fallback of `pink`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('.bb3')?.backgroundColor.trim(), 'var(--building-color3, pink)'); ``` # --seed-- ## --seed-contents-- ```html City Skyline
``` ```css * { border: 1px solid black; box-sizing: border-box; } body { height: 100vh; margin: 0; overflow: hidden; } .background-buildings { width: 100%; height: 100%; display: flex; align-items: flex-end; justify-content: space-evenly; } --fcc-editable-region-- .bb1 { width: 10%; height: 70%; display: flex; flex-direction: column; align-items: center; --building-color1: #aa80ff; --building-color2: #66cc99; } .bb1a { width: 70%; height: 10%; background-color: var(--building-color1); } .bb1b { width: 80%; height: 10%; background-color: var(--building-color1); } .bb1c { width: 90%; height: 10%; background-color: var(--building-color1); } .bb1d { width: 100%; height: 70%; background-color: var(--building-color1); } .bb2 { width: 10%; height: 50%; background-color: var(--building-color2, green); } .bb3 { width: 10%; height: 55%; } --fcc-editable-region-- .bb4 { width: 11%; height: 58%; } ```