68 lines
2.1 KiB
Markdown
68 lines
2.1 KiB
Markdown
---
|
||
id: 587d78a7367417b2b2512ae0
|
||
title: Use CSS Animation to Change the Hover State of a Button
|
||
challengeType: 0
|
||
videoUrl: ''
|
||
localeTitle: 使用CSS动画更改按钮的悬停状态
|
||
---
|
||
|
||
## Description
|
||
<section id="description">您可以使用CSS <code>@keyframes</code>更改悬停状态下按钮的颜色。以下是在悬停时更改图像宽度的示例： <blockquote> <风格> <br> img：hover { <br>动画名称：宽度; <br>动画持续时间：500ms; <br> } <br><br> @keyframes width { <br> 100％{ <br>宽度：40px; <br> } <br> } <br> </样式> <br><br> <img src =“https://bit.ly/smallgooglelogo"alt =”Google的徽标“/> </blockquote></section>
|
||
|
||
## Instructions
|
||
<section id="instructions">请注意， <code>ms</code>表示毫秒，其中1000毫秒等于1秒。使用CSS <code>@keyframes</code>更改<code>button</code>元素的<code>background-color</code> ，以便当用户将鼠标悬停在其上时变为<code>#4791d0</code> 。 <code>@keyframes</code>规则应该只有<code>100%</code>的条目。 </section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: '@keyframes规则应使用<code>animation-name</code> background-color。'
|
||
testString: 'assert(code.match(/@keyframes\s+?background-color\s*?{/g), "The @keyframes rule should use the <code>animation-name</code> background-color.");'
|
||
- text: '<code>@keyframes</code>下应该有一条规则将<code>background-color</code>更改为<code>#4791d0</code>为100％。'
|
||
testString: 'assert(code.match(/100%\s*?{\s*?background-color:\s*?#4791d0;\s*?}/gi), "There should be one rule under <code>@keyframes</code> that changes the <code>background-color</code> to <code>#4791d0</code> at 100%.");'
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='html-seed'>
|
||
|
||
```html
|
||
<style>
|
||
button {
|
||
border-radius: 5px;
|
||
color: white;
|
||
background-color: #0F5897;
|
||
padding: 5px 10px 8px 10px;
|
||
}
|
||
|
||
button:hover {
|
||
animation-name: background-color;
|
||
animation-duration: 500ms;
|
||
}
|
||
|
||
|
||
</style>
|
||
|
||
<button>Register</button>
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
</section>
|