80 lines
1.8 KiB
Markdown
80 lines
1.8 KiB
Markdown
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---
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id: 5a90374338fddaf9a66b5d3a
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title: 使用 justify-self 水平對齊項目
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challengeType: 0
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videoUrl: 'https://scrimba.com/p/pByETK/cJbpKHq'
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forumTopicId: 301122
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dashedName: align-an-item-horizontally-using-justify-self
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---
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# --description--
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在 CSS 網格中，每個網格項的內容分別位於被稱爲<dfn>單元格（cell）</dfn>的框內。 你可以使用網格項的 `justify-self` 屬性，設置其內容的位置在單元格內沿水平軸的對齊方式。 默認情況下，這個屬性的值是 `stretch`，這將使內容佔滿整個單元格的寬度。 該 CSS 網格屬性也可以使用其他的值：
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`start`：使內容在單元格左側對齊，
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`center`：使內容在單元格居中對齊，
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`end`：使內容在單元格右側對齊，
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# --instructions--
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請使用 `justify-self` 屬性讓 class 爲 `item2` 的網格項居中。
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# --hints--
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class 爲 `item2` 的元素應具有 `justify-self` 屬性且屬性值應爲 `center`。
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```js
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assert(
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code.match(/.item2\s*?{[\s\S]*justify-self\s*?:\s*?center\s*?;[\s\S]*}/gi)
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<style>
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.item1{background: LightSkyBlue;}
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.item2 {
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background: LightSalmon;
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/* Only change code below this line */
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/* Only change code above this line */
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}
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.item3{background:PaleTurquoise;}
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.item4{background:LightPink;}
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.item5{background:PaleGreen;}
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.container {
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font-size: 40px;
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min-height: 300px;
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width: 100%;
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background: LightGray;
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display: grid;
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grid-template-columns: 1fr 1fr 1fr;
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grid-template-rows: 1fr 1fr 1fr;
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grid-gap: 10px;
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}
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</style>
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<div class="container">
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<div class="item1">1</div>
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<div class="item2">2</div>
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<div class="item3">3</div>
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<div class="item4">4</div>
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<div class="item5">5</div>
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</div>
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```
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# --solutions--
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```html
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<style>.item2 {justify-self: center;}</style>
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```
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