2018-10-10 18:03:03 -04:00
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---
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id: 587d78ae367417b2b2512aff
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2020-12-16 00:37:30 -07:00
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title: 使用 order 属性重新排列项目
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2018-10-10 18:03:03 -04:00
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challengeType: 0
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2020-02-11 21:32:25 +08:00
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videoUrl: 'https://scrimba.com/p/pVaDAv/cMbvNAG'
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forumTopicId: 301116
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2018-10-10 18:03:03 -04:00
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---
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2020-12-16 00:37:30 -07:00
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# --description--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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`order`属性告诉 CSS flex 容器里项目的顺序。默认情况下,项目排列顺序与源 HTML 文件中顺序相同。这个属性接受数字作为参数,可以使用负数。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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# --instructions--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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给`#box-1`和`#box-2`添加 CSS 属性`order`,`#box-1`的`order`属性值设为 `2`,`#box-2`的`order`属性值设为 `1`。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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# --hints--
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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`#box-1`元素应有`order`属性,其值应为 `2`。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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```js
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assert($('#box-1').css('order') == '2');
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2018-10-10 18:03:03 -04:00
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```
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2020-12-16 00:37:30 -07:00
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`#box-2`元素应有`order`属性,其值应为 `1`。
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2018-10-10 18:03:03 -04:00
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2020-12-16 00:37:30 -07:00
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```js
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assert($('#box-2').css('order') == '1');
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2018-10-10 18:03:03 -04:00
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```
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2020-02-11 21:32:25 +08:00
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2020-12-16 00:37:30 -07:00
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# --solutions--
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