2.9 KiB
2.9 KiB
id | title | challengeType | dashedName |
---|---|---|---|
612ebedec97e096c8bf64999 | ステップ 29 | 0 | step-29 |
--description--
@media
クエリ内に .keys
セレクターを追加し、width
の値を 318px
に設定してください。
--hints--
@media
ルールには .keys
セレクターが必要です。
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 768px)');
const keys = rules?.find(rule => rule.selectorText === '.keys');
assert(keys);
新しい .keys
セレクターには値が 318px
に設定されている width
が必要です。
const rules = new __helpers.CSSHelp(document).getRuleListsWithinMedia('(max-width: 768px)');
const keys = rules?.find(rule => rule.selectorText === '.keys');
assert(keys?.style.width === '318px');
--seed--
--seed-contents--
<!DOCTYPE html>
<html lang="en">
<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>
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;
}
.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;
}
--fcc-editable-region--
@media (max-width: 768px) {
#piano {
width: 358px;
}
}
--fcc-editable-region--