--- id: 5d822fd413a79914d39e98da title: Step 18 challengeType: 0 dashedName: step-18 --- # --description-- Your first building looks pretty good now. Let's make some more! Nest three new `div` elements in the `background-buildings` container and give them the classes of `bb2`, `bb3`, and `bb4` in that order. These will be three more buildings for the background. # --hints-- You should create a `div` with a class of `bb2`. ```js assert.exists(document.querySelector('div.bb2')); ``` You should create a `div` with a class of `bb3`. ```js assert.exists(document.querySelector('div.bb3')); ``` You should create a `div` with a class of `bb4`. ```js assert.exists(document.querySelector('div.bb4')); ``` You should create 3 new `div` elements. ```js assert.equal(document.querySelectorAll('div')?.length, 9); ``` You should place these `div` elements within the `.background-buildings` element. ```js assert.equal(document.querySelector('div.background-buildings')?.children?.length, 4); ``` You should place the elements in the correct order. ```js function __t(a, b) { return [...document.querySelector(a)?.nextElementSibling?.classList]?.includes(b); } assert(__t('div.bb1','bb2') && __t('div.bb2','bb3') && __t('div.bb3','bb4')); ``` # --seed-- ## --seed-contents-- ```html City Skyline
--fcc-editable-region-- --fcc-editable-region--
``` ```css * { border: 1px solid black; box-sizing: border-box; } body { height: 100vh; margin: 0; overflow: hidden; } .background-buildings { width: 100%; height: 100%; } .bb1 { width: 10%; height: 70%; display: flex; flex-direction: column; align-items: center; --building-color1: #aa80ff; } .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); } ```