97 lines
2.4 KiB
Markdown
97 lines
2.4 KiB
Markdown
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---
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id: 587d78ad367417b2b2512afa
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title: Use the flex-wrap Property to Wrap a Row or Column
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challengeType: 0
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videoUrl: ''
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localeTitle: 使用flex-wrap属性包装行或列
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---
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## Description
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<section id="description"> CSS flexbox具有将flex项分割为多行（或列）的功能。默认情况下，Flex容器将所有Flex项目放在一起。例如，一行将全部在一行上。但是，使用<code>flex-wrap</code>属性，它会告诉CSS包装项目。这意味着额外的项目将移动到新的行或列中。包装发生的断点取决于物品的大小和容器的大小。 CSS还有包装方向的选项： <ul><li> <code>nowrap</code> ：这是默认设置，不包装项目。 </li><li> <code>wrap</code> ：如果项目在一行中，则从左到右包装，如果它们在列中，则从上到下包装。 </li><li> <code>wrap-reverse</code> ：如果项目在一行中，则从下到上包装项目;如果它们在列中，则从右到左包装。 </li></ul></section>
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## Instructions
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<section id="instructions">当前布局对于一行有太多的框。将CSS属性<code>flex-wrap</code>添加到<code>#box-container</code>元素，并为其赋值wrap。 </section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: '<code>#box-container</code>元素应该将<code>flex-wrap</code>属性设置为wrap值。'
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testString: 'assert($("#box-container").css("flex-wrap") == "wrap", "The <code>#box-container</code> element should have the <code>flex-wrap</code> property set to a value of wrap.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<style>
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#box-container {
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background: gray;
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display: flex;
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height: 100%;
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}
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#box-1 {
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background-color: dodgerblue;
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width: 25%;
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height: 50%;
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}
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#box-2 {
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background-color: orangered;
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width: 25%;
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height: 50%;
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}
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#box-3 {
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background-color: violet;
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width: 25%;
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height: 50%;
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}
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#box-4 {
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background-color: yellow;
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width: 25%;
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height: 50%;
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}
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#box-5 {
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background-color: green;
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width: 25%;
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height: 50%;
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}
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#box-6 {
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background-color: black;
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width: 25%;
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height: 50%;
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}
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</style>
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<div id="box-container">
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<div id="box-1"></div>
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<div id="box-2"></div>
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<div id="box-3"></div>
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<div id="box-4"></div>
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<div id="box-5"></div>
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<div id="box-6"></div>
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</div>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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