82 lines
2.0 KiB
Markdown
82 lines
2.0 KiB
Markdown
---
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id: bad87fee1348bd9aedf06756
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title: Override Class Declarations with Inline Styles
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cGJDRha'
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forumTopicId: 18252
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localeTitle: 内联样式的优先级高于 ID 选择器
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---
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## Description
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<section id='description'>
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我们刚刚证明了，id 选择器无论在<code>style</code>标签哪里声明，都会覆盖 class 声明的样式，
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其实还有其他方法可以覆盖重写 CSS 样式。你还记得行内样式吗？
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</section>
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## Instructions
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<section id='instructions'>
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使用行内样式尝试让<code>h1</code>的字体颜色变白。像下面这样使用：
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<code><h1 style="color: green"></code>
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<code>h1</code>元素需继续保留<code>blue-text</code>和<code>pink-text</code>class。
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</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>h1</code>元素应该包含<code>pink-text</code> class。'
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testString: assert($("h1").hasClass("pink-text"));
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- text: '<code>h1</code>元素应该包含<code>blue-text</code> class。'
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testString: assert($("h1").hasClass("blue-text"));
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- text: '<code>h1</code>元素应该包含一个名为<code>orange-text</code>的id。'
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testString: assert($("h1").attr("id") === "orange-text");
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- text: '<code>h1</code>元素应该含有行内样式。'
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testString: assert(document.querySelector('h1[style]'));
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- text: '<code>h1</code>元素的字体颜色应该为白色。'
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testString: assert($("h1").css("color") === "rgb(255, 255, 255)");
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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">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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```html
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// solution required
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```
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</section>
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