--- id: 5d822fd413a79914d39e98e3 title: Part 27 challengeType: 0 dashedName: part-27 --- # --description-- Create another variable named `--building-color4` and give it a value of `#538cc6`. Make sure it's in the `:root` selector this time. Then use it to fill in the last building. # --hints-- You should define a new property variable called `--building-color4`. ```js assert.exists(new __helpers.CSSHelp(document).isPropertyUsed('--building-color4')); ``` You should give `--building-color4` a value of `#538cc6` in the `:root` selector. ```js assert.equal(new __helpers.CSSHelp(document).getStyle(':root')?.getPropertyValue('--building-color4').trim(), '#538cc6'); ``` # --seed-- ## --seed-contents-- ```html freeCodeCamp Skyline Project
``` ```css --fcc-editable-region-- :root { --building-color1: #aa80ff; --building-color2: #66cc99; --building-color3: #cc6699; } * { 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; } .bb1 { width: 10%; height: 70%; display: flex; flex-direction: column; align-items: center; } .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); } .bb3 { width: 10%; height: 55%; background-color: var(--building-color3); } .bb4 { width: 11%; height: 58%; } --fcc-editable-region-- ```