70 lines
2.1 KiB
Markdown
70 lines
2.1 KiB
Markdown
---
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id: 58a7a6ebf9a6318348e2d5aa
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title: Modify Fill Mode of an Animation
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challengeType: 0
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videoUrl: ''
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localeTitle: 修改动画的填充模式
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---
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## Description
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<section id="description">这很好，但它还不能正常工作。注意动画在<code>500ms</code>过后如何重置，导致按钮恢复为原始颜色。您希望按钮保持突出显示。这可以通过设置来完成<code>animation-fill-mode</code>属性<code>forwards</code> 。 <code>animation-fill-mode</code>指定动画完成时应用于元素的样式。您可以这样设置： <code>animation-fill-mode: forwards;</code> </section>
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## Instructions
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<section id="instructions">设置<code>button:hover</code>的<code>animation-fill-mode</code>属性<code>button:hover</code> to <code>forwards</code>以便当用户将鼠标悬停在按钮上时按钮保持突出显示。 </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>button:hover</code>应该具有值为<code>forwards</code>的<code>animation-fill-mode</code>属性。'
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testString: 'assert(code.match(/button\s*?:\s*?hover\s*?{[\s\S]*animation-fill-mode\s*?:\s*?forwards\s*?;[\s\S]*}/gi) && code.match(/button\s*?:\s*?hover\s*?{[\s\S]*animation-name\s*?:\s*?background-color\s*?;[\s\S]*}/gi) && code.match(/button\s*?:\s*?hover\s*?{[\s\S]*animation-duration\s*?:\s*?500ms\s*?;[\s\S]*}/gi), "<code>button:hover</code> should have a <code>animation-fill-mode</code> property with a value of <code>forwards</code>.");'
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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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button {
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border-radius: 5px;
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color: white;
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background-color: #0F5897;
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padding: 5px 10px 8px 10px;
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}
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button:hover {
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animation-name: background-color;
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animation-duration: 500ms;
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/* add your code below this line */
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/* add your code above this line */
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}
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@keyframes background-color {
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100% {
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background-color: #4791d0;
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}
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}
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</style>
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<button>Register</button>
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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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