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freeCodeCamp/curriculum/challenges/italian/14-responsive-web-design-22/learn-responsive-web-design.../612ec29c84b9a6718b1f5cec.md

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chore(i18n,learn): processed translations (#46369)
2022-06-06 14:55:35 +00:00
---
id: 612ec29c84b9a6718b1f5cec
title: Step 33
challengeType: 0
dashedName: step-33
---
# --description--
Per la nuova regola `@media`, imposta la `width` di `#piano` a `675px` e la `width` di `.keys` a `633px`.
Con questo, il tuo pianoforte è completo!
# --hints--
La seconda regola `@media` dovrebbe avere un selettore `#piano`.
```js
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 1199px) and (min-width: 769px)');
const piano = rules?.find(rule => rule.selectorText === '#piano');
assert(piano);
```
Il nuovo selettore `#piano` dovrebbe avere una proprietà `width` di `675px`.
```js
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 1199px) and (min-width: 769px)');
const piano = rules?.find(rule => rule.selectorText === '#piano');
assert(piano?.style.width === '675px');
```
La seconda regola `@media` dovrebbe avere un selettore `.keys`.
```js
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 1199px) and (min-width: 769px)');
const keys = rules?.find(rule => rule.selectorText === '.keys');
assert(keys);
```
Il nuovo selettore `.keys` dovrebbe avere una proprietà `width` di `633px`.
```js
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 1199px) and (min-width: 769px)');
const keys = rules?.find(rule => rule.selectorText === '.keys');
assert(keys?.style.width === '633px');
```
# --seed--
## --seed-contents--
```html
<!DOCTYPE html>
chore(i18n,learn): processed translations (#46725)
2022-06-30 15:24:09 +00:00
<html lang="en">
chore(i18n,learn): processed translations (#46369)
2022-06-06 14:55:35 +00:00
<head>
<meta charset="UTF-8" />
<title>Piano</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div id="piano">
<img class="logo" src="https://cdn.freecodecamp.org/platform/universal/fcc_primary.svg" alt="freeCodeCamp Logo" />
<div class="keys">
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
</div>
</div>
</body>
</html>
```
```css
html {
box-sizing: border-box;
}
*, *::before, *::after {
box-sizing: inherit;
}
#piano {
background-color: #00471b;
width: 992px;
height: 290px;
margin: 80px auto;
padding: 90px 20px 0 20px;
position: relative;
border-radius: 10px;
}
.keys {
background-color: #040404;
width: 949px;
height: 180px;
padding-left: 2px;
overflow: hidden;
}
.key {
background-color: #ffffff;
position: relative;
width: 41px;
height: 175px;
margin: 2px;
float: left;
border-radius: 0 0 3px 3px;
}
.key.black--key::after {
background-color: #1d1e22;
content: "";
position: absolute;
left: -18px;
width: 32px;
height: 100px;
border-radius: 0 0 3px 3px;
}
.logo {
width: 200px;
position: absolute;
top: 23px;
}
@media (max-width: 768px) {
#piano {
width: 358px;
}
.keys {
width: 318px;
}
.logo {
width: 150px;
}
}
--fcc-editable-region--
@media (max-width: 1199px) and (min-width: 769px) {
}
--fcc-editable-region--
```
# --solutions--
```html
<!DOCTYPE html>
chore(i18n,learn): processed translations (#46725)
2022-06-30 15:24:09 +00:00
<html lang="en">
chore(i18n,learn): processed translations (#46369)
2022-06-06 14:55:35 +00:00
<head>
<meta charset="UTF-8" />
<title>Piano</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div id="piano">
<img class="logo" src="https://cdn.freecodecamp.org/platform/universal/fcc_primary.svg" alt="freeCodeCamp Logo" />
<div class="keys">
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
<div class="key black--key"></div>
</div>
</div>
</body>
</html>
```
```css
html {
box-sizing: border-box;
}
*, *::before, *::after {
box-sizing: inherit;
}
#piano {
background-color: #00471b;
width: 992px;
height: 290px;
margin: 80px auto;
padding: 90px 20px 0 20px;
position: relative;
border-radius: 10px;
}
.keys {
background-color: #040404;
width: 949px;
height: 180px;
padding-left: 2px;
overflow: hidden;
}
.key {
background-color: #ffffff;
position: relative;
width: 41px;
height: 175px;
margin: 2px;
float: left;
border-radius: 0 0 3px 3px;
}
.key.black--key::after {
background-color: #1d1e22;
content: "";
position: absolute;
left: -18px;
width: 32px;
height: 100px;
border-radius: 0 0 3px 3px;
}
.logo {
width: 200px;
position: absolute;
top: 23px;
}
@media (max-width: 768px) {
#piano {
width: 358px;
}
.keys {
width: 318px;
}
.logo {
width: 150px;
}
}
@media (max-width: 1199px) and (min-width: 769px) {
#piano {
width: 675px;
}
.keys {
width: 633px;
}
}
```