2022-06-08 17:13:28 +00:00
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---
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id: 5d822fd413a79914d39e990b
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title: Step 67
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challengeType: 0
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dashedName: step-67
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---
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# --description--
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Aggiungi la nuova classe `building-wrap` agli elementi `.bb1` e `.bb4`. In questo modo centrerai gli edifici che ne hanno bisogno.
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# --hints--
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Dovresti aggiungere `building-wrap` all'elemento `.bb1`.
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```js
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assert.exists(document.querySelector("div.bb1.building-wrap"));
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```
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Dovresti aggiungere `building-wrap` all'elemento `.bb4`.
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```js
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assert.exists(document.querySelector("div.bb4.building-wrap"));
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```
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# --seed--
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## --seed-contents--
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```html
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<!DOCTYPE html>
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2022-07-05 17:37:27 +00:00
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<html lang="en">
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2022-06-08 17:13:28 +00:00
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<head>
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2022-07-05 17:37:27 +00:00
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<meta charset="UTF-8">
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2022-06-08 17:13:28 +00:00
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<title>City Skyline</title>
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2022-06-21 15:00:08 +00:00
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<link href="styles.css" rel="stylesheet" />
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2022-06-08 17:13:28 +00:00
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</head>
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<body>
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<div class="background-buildings">
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<div></div>
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<div></div>
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--fcc-editable-region--
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<div class="bb1">
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<div class="bb1a bb1-window"></div>
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<div class="bb1b bb1-window"></div>
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<div class="bb1c bb1-window"></div>
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<div class="bb1d"></div>
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</div>
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<div class="bb2">
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<div class="bb2a"></div>
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<div class="bb2b"></div>
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</div>
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<div class="bb3"></div>
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<div></div>
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<div class="bb4">
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--fcc-editable-region--
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<div class="bb4a"></div>
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<div class="bb4b"></div>
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<div class="bb4c"></div>
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</div>
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<div></div>
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<div></div>
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</div>
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<div class="foreground-buildings">
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<div></div>
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<div></div>
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<div class="fb1"></div>
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<div class="fb2"></div>
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<div></div>
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<div class="fb3"></div>
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<div class="fb4"></div>
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<div class="fb5"></div>
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<div class="fb6"></div>
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<div></div>
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<div></div>
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</div>
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</body>
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</html>
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```
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```css
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:root {
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--building-color1: #aa80ff;
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--building-color2: #66cc99;
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--building-color3: #cc6699;
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--building-color4: #538cc6;
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--window-color1: black;
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--window-color2: #8cd9b3;
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--window-color3: #d98cb3;
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}
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* {
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border: 1px solid black;
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box-sizing: border-box;
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}
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body {
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height: 100vh;
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margin: 0;
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overflow: hidden;
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}
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.background-buildings, .foreground-buildings {
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width: 100%;
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height: 100%;
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display: flex;
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align-items: flex-end;
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justify-content: space-evenly;
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position: absolute;
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top: 0;
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}
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.building-wrap {
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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/* BACKGROUND BUILDINGS - "bb" stands for "background building" */
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.bb1 {
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width: 10%;
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height: 70%;
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}
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.bb1a {
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width: 70%;
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}
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.bb1b {
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width: 80%;
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}
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.bb1c {
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width: 90%;
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}
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.bb1d {
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width: 100%;
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height: 70%;
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background: linear-gradient(
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var(--building-color1) 50%,
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var(--window-color1)
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);
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}
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.bb1-window {
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height: 10%;
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background: linear-gradient(
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var(--building-color1),
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var(--window-color1)
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);
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}
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.bb2 {
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width: 10%;
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height: 50%;
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}
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.bb2a {
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border-bottom: 5vh solid var(--building-color2);
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border-left: 5vw solid transparent;
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border-right: 5vw solid transparent;
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}
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.bb2b {
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width: 100%;
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height: 100%;
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background: repeating-linear-gradient(
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var(--building-color2),
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var(--building-color2) 6%,
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var(--window-color2) 6%,
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var(--window-color2) 9%
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);
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}
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.bb3 {
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width: 10%;
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height: 55%;
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background: repeating-linear-gradient(
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90deg,
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var(--building-color3),
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var(--building-color3),
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var(--window-color3) 15%
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);
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}
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.bb4 {
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width: 11%;
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height: 58%;
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}
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.bb4a {
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width: 3%;
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height: 10%;
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background-color: var(--building-color4);
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}
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.bb4b {
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width: 80%;
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height: 5%;
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background-color: var(--building-color4);
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}
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.bb4c {
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width: 100%;
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height: 85%;
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background-color: var(--building-color4);
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}
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/* FOREGROUND BUILDINGS - "fb" stands for "foreground building" */
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.fb1 {
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width: 10%;
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height: 60%;
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background-color: var(--building-color4);
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}
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.fb2 {
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width: 10%;
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height: 40%;
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background-color: var(--building-color3);
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}
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.fb3 {
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width: 10%;
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height: 35%;
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background-color: var(--building-color1);
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}
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.fb4 {
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width: 8%;
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height: 45%;
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background-color: var(--building-color1);
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position: relative;
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left: 10%;
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}
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.fb5 {
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width: 10%;
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height: 33%;
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background-color: var(--building-color2);
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position: relative;
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right: 10%;
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}
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.fb6 {
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width: 9%;
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height: 38%;
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background-color: var(--building-color3);
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}
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```
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