76 lines
3.1 KiB
Markdown
76 lines
3.1 KiB
Markdown
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---
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id: bad87fee1348bd9aedf07756
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title: Override All Other Styles by using Important
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challengeType: 0
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videoUrl: ''
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localeTitle: 使用重要覆盖所有其他样式
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---
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## Description
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<section id="description">好极了！我们刚刚证明了内联样式将覆盖<code>style</code>元素中的所有CSS声明。可是等等。有一种覆盖CSS的最后一种方法。这是所有人中最强大的方法。但在我们这样做之前，让我们谈谈为什么你想要覆盖CSS。在许多情况下，您将使用CSS库。这些可能会意外地覆盖您自己的CSS。所以当你绝对需要确定一个元素有特定的CSS时，你可以使用<code>!important</code>让我们一直回到我们的<code>pink-text</code>类声明。请记住，我们的<code>pink-text</code>类被后续的类声明，id声明和内联样式覆盖。 </section>
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## Instructions
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<section id="instructions">让我们在粉红色文本元素的颜色声明中添加关键字<code>!important</code> ，以100％确定你的<code>h1</code>元素是粉红色的。如何执行此操作的示例是： <code>color: red !important;</code> </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: 您的<code>h1</code>元素应该具有<code>pink-text</code>类。
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testString: 'assert($("h1").hasClass("pink-text"), "Your <code>h1</code> element should have the class <code>pink-text</code>.");'
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- text: 你的<code>h1</code>元素应该有<code>blue-text</code> 。
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testString: 'assert($("h1").hasClass("blue-text"), "Your <code>h1</code> element should have the class <code>blue-text</code>.");'
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- text: 您的<code>h1</code>元素应具有<code>orange-text</code>的ID。
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testString: 'assert($("h1").attr("id") === "orange-text", "Your <code>h1</code> element should have the id of <code>orange-text</code>.");'
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- text: '您的<code>h1</code>元素应具有内联样式的<code>color: white</code> 。'
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testString: 'assert(code.match(/<h1.*style/gi) && code.match(/<h1.*style.*color\s*?:/gi), "Your <code>h1</code> element should have the inline style of <code>color: white</code>.");'
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- text: 你的<code>pink-text</code>类声明应该有<code>!important</code>关键字来覆盖所有其他声明。
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testString: 'assert(code.match(/\.pink-text\s*?\{[\s\S]*?color:.*pink.*!important\s*;?[^\.]*\}/g), "Your <code>pink-text</code> class declaration should have the <code>!important</code> keyword to override all other declarations.");'
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- text: 你的<code>h1</code>元素应该是粉红色的。
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testString: 'assert($("h1").css("color") === "rgb(255, 192, 203)", "Your <code>h1</code> element should be pink.");'
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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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body {
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background-color: black;
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font-family: monospace;
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color: green;
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}
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#orange-text {
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color: orange;
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}
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.pink-text {
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color: pink;
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}
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.blue-text {
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color: blue;
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}
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</style>
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<h1 id="orange-text" class="pink-text blue-text" style="color: white">Hello World!</h1>
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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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