2018-10-10 22:03:03 +00:00
|
|
|
|
---
|
|
|
|
|
id: bad87fee1348bd9acde08812
|
2020-12-16 07:37:30 +00:00
|
|
|
|
title: 使图片自适应移动端
|
2018-10-10 22:03:03 +00:00
|
|
|
|
challengeType: 0
|
2020-09-07 08:17:39 +00:00
|
|
|
|
forumTopicId: 18232
|
2021-01-13 02:31:00 +00:00
|
|
|
|
dashedName: make-images-mobile-responsive
|
2018-10-10 22:03:03 +00:00
|
|
|
|
---
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
# --description--
|
|
|
|
|
|
|
|
|
|
首先,在已有的图片下面添加一张新的图片. 设置 `src` 属性为 `https://bit.ly/fcc-running-cats`。
|
|
|
|
|
|
2020-09-07 08:17:39 +00:00
|
|
|
|
如果图片的大小恰恰和我们手机屏幕尺寸大小一样自然是最好的。
|
2018-10-10 22:03:03 +00:00
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
幸运的是现在通过 Bootstrap,我们仅仅只需要为 image 标签上设置 class 属性为 `img-responsive` 就可以让它完美的适应你页面的宽度了。
|
|
|
|
|
|
|
|
|
|
# --hints--
|
|
|
|
|
|
|
|
|
|
该页面拥有总计两个图片。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert($('img').length === 2);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
新的图片应该在旧的图片下面并且含有 class 属性 `img-responsive`。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert($('img:eq(1)').hasClass('img-responsive'));
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
新的图片不应该含有 class 属性 `smaller-image`。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert(!$('img:eq(1)').hasClass('smaller-image'));
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
新图片的 `src` 属性应该为 `https://bit.ly/fcc-running-cats`。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert($('img:eq(1)').attr('src') === 'https://bit.ly/fcc-running-cats');
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
确保新的 `img` 元素有一个闭合的右尖括号 “/>”。
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
assert(
|
|
|
|
|
code.match(/<img/g) &&
|
|
|
|
|
code.match(/<img[^<]*>/g).length === 2 &&
|
|
|
|
|
code.match(/<img/g).length === 2
|
|
|
|
|
);
|
2018-10-10 22:03:03 +00:00
|
|
|
|
```
|
2020-08-13 15:24:35 +00:00
|
|
|
|
|
2021-01-13 02:31:00 +00:00
|
|
|
|
# --seed--
|
|
|
|
|
|
|
|
|
|
## --seed-contents--
|
|
|
|
|
|
|
|
|
|
```html
|
|
|
|
|
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
|
|
|
|
|
<style>
|
|
|
|
|
.red-text {
|
|
|
|
|
color: red;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
h2 {
|
|
|
|
|
font-family: Lobster, Monospace;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p {
|
|
|
|
|
font-size: 16px;
|
|
|
|
|
font-family: Monospace;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.thick-green-border {
|
|
|
|
|
border-color: green;
|
|
|
|
|
border-width: 10px;
|
|
|
|
|
border-style: solid;
|
|
|
|
|
border-radius: 50%;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.smaller-image {
|
|
|
|
|
width: 100px;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
|
|
|
|
|
|
|
|
|
<div class="container-fluid">
|
|
|
|
|
<h2 class="red-text">CatPhotoApp</h2>
|
|
|
|
|
|
|
|
|
|
<p>Click here for <a href="#">cat photos</a>.</p>
|
|
|
|
|
|
|
|
|
|
<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
|
|
|
|
|
|
|
|
|
|
<p>Things cats love:</p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li>cat nip</li>
|
|
|
|
|
<li>laser pointers</li>
|
|
|
|
|
<li>lasagna</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p>Top 3 things cats hate:</p>
|
|
|
|
|
<ol>
|
|
|
|
|
<li>flea treatment</li>
|
|
|
|
|
<li>thunder</li>
|
|
|
|
|
<li>other cats</li>
|
|
|
|
|
</ol>
|
|
|
|
|
<form action="https://freecatphotoapp.com/submit-cat-photo">
|
|
|
|
|
<label><input type="radio" name="indoor-outdoor"> Indoor</label>
|
|
|
|
|
<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Loving</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Lazy</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Crazy</label>
|
|
|
|
|
<input type="text" placeholder="cat photo URL" required>
|
|
|
|
|
<button type="submit">Submit</button>
|
|
|
|
|
</form>
|
|
|
|
|
</div>
|
|
|
|
|
```
|
|
|
|
|
|
2020-12-16 07:37:30 +00:00
|
|
|
|
# --solutions--
|
|
|
|
|
|
2021-01-13 02:31:00 +00:00
|
|
|
|
```html
|
|
|
|
|
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
|
|
|
|
|
<style>
|
|
|
|
|
.red-text {
|
|
|
|
|
color: red;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
h2 {
|
|
|
|
|
font-family: Lobster, Monospace;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p {
|
|
|
|
|
font-size: 16px;
|
|
|
|
|
font-family: Monospace;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.thick-green-border {
|
|
|
|
|
border-color: green;
|
|
|
|
|
border-width: 10px;
|
|
|
|
|
border-style: solid;
|
|
|
|
|
border-radius: 50%;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.smaller-image {
|
|
|
|
|
width: 100px;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
|
|
|
|
|
|
|
|
|
<div class="container-fluid">
|
|
|
|
|
<h2 class="red-text">CatPhotoApp</h2>
|
|
|
|
|
|
|
|
|
|
<p>Click here for <a href="#">cat photos</a>.</p>
|
|
|
|
|
|
|
|
|
|
<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
|
|
|
|
|
<img src="https://bit.ly/fcc-running-cats" class="img-responsive">
|
|
|
|
|
|
|
|
|
|
<p>Things cats love:</p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li>cat nip</li>
|
|
|
|
|
<li>laser pointers</li>
|
|
|
|
|
<li>lasagna</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p>Top 3 things cats hate:</p>
|
|
|
|
|
<ol>
|
|
|
|
|
<li>flea treatment</li>
|
|
|
|
|
<li>thunder</li>
|
|
|
|
|
<li>other cats</li>
|
|
|
|
|
</ol>
|
|
|
|
|
<form action="https://freecatphotoapp.com/submit-cat-photo">
|
|
|
|
|
<label><input type="radio" name="indoor-outdoor"> Indoor</label>
|
|
|
|
|
<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Loving</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Lazy</label>
|
|
|
|
|
<label><input type="checkbox" name="personality"> Crazy</label>
|
|
|
|
|
<input type="text" placeholder="cat photo URL" required>
|
|
|
|
|
<button type="submit">Submit</button>
|
|
|
|
|
</form>
|
|
|
|
|
</div>
|
|
|
|
|
```
|