freeCodeCamp/curriculum/challenges/chinese/01-responsive-web-design/basic-css/use-clockwise-notation-to-specify-the-margin-of-an-element.md
Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

2.9 KiB

id, title, challengeType, videoUrl, forumTopicId, dashedName
id title challengeType videoUrl forumTopicId dashedName
bad87fee1348bd9afdf08726 使用顺时针方向指定元素的外边距 0 https://scrimba.com/c/cnpybAd 18345 use-clockwise-notation-to-specify-the-margin-of-an-element

--description--

让我们再试一次,不过这一次轮到 margin 了。

同样,每个方向的外边距值可以在 margin 属性里面汇总声明,而无需分别通过 margin-topmargin-rightmargin-bottommargin-left 分别声明,代码如下:

margin: 10px 20px 10px 20px;

这四个值按顺时针排序:上、右、下、左。汇总声明的效果与为每一个方向单独声明 margin 的效果是一致的。

--instructions--

按照顺时针顺序,将 class 为 "blue-box" 元素的上外边距以及左外边距设置为 40px,右外边距和下外边距设置为 20px

--hints--

class 为 blue-box 的元素的上外边距应为 40px

assert($('.blue-box').css('margin-top') === '40px');

class 为 blue-box 的元素的右外边距应为 20px

assert($('.blue-box').css('margin-right') === '20px');

class 为 blue-box 的元素的下外边距应为 20px

assert($('.blue-box').css('margin-bottom') === '20px');

class 为 blue-box 的元素的左外边距应为 40px

assert($('.blue-box').css('margin-left') === '40px');

应沿顺时针方向设置 blue-box 的外边距。

const removeCssComments = (str) => str.replace(/\/\*[\s\S]+?\*\//g, '');
assert(
  /\.blue-box\s*{[\s\S]*margin[\s]*:\s*\d+px\s+\d+px\s+\d+px\s+\d+px(;\s*[^}]+\s*}|;?\s*})/.test(
    removeCssComments($('style').text())
  )
);

--seed--

--seed-contents--

<style>
  .injected-text {
    margin-bottom: -25px;
    text-align: center;
  }

  .box {
    border-style: solid;
    border-color: black;
    border-width: 5px;
    text-align: center;
  }

  .yellow-box {
    background-color: yellow;
    padding: 20px 40px 20px 40px;
  }

  .red-box {
    background-color: crimson;
    color: #fff;
    margin: 20px 40px 20px 40px;
  }

  .blue-box {
    background-color: blue;
    color: #fff;
  }
</style>
<h5 class="injected-text">margin</h5>

<div class="box yellow-box">
  <h5 class="box red-box">padding</h5>
  <h5 class="box blue-box">padding</h5>
</div>

--solutions--

<style>
  .injected-text {
    margin-bottom: -25px;
    text-align: center;
  }

  .box {
    border-style: solid;
    border-color: black;
    border-width: 5px;
    text-align: center;
  }

  .yellow-box {
    background-color: yellow;
    padding: 20px 40px 20px 40px;
  }

  .red-box {
    background-color: crimson;
    color: #fff;
    margin: 20px 40px 20px 40px;
  }

  .blue-box {
    background-color: blue;
    color: #fff;
    margin: 40px 20px 20px 40px;
  }
</style>
<h5 class="injected-text">margin</h5>

<div class="box yellow-box">
  <h5 class="box red-box">padding</h5>
  <h5 class="box blue-box">padding</h5>
</div>