4.5 KiB
4.5 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
bad87fee1348bd9acde08812 | 使图片自适应移动端 | 0 | 18232 | make-images-mobile-responsive |
--description--
首先,在已有的图片下面添加一张新的图片。 将新图片的 src
属性设置为 https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg
。
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。
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
, 就可以让它完美地适应你的页面的宽度了。
--hints--
该页面共有两张图片。
assert($('img').length === 2);
新的图片应该在旧的图片下面并且有值包含 img-responsive
的 class 属性。
assert($('img:eq(1)').hasClass('img-responsive'));
新图片的 class 不应该包含 smaller-image
。
assert(!$('img:eq(1)').hasClass('smaller-image'));
新图片应该有一个值为 https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg
的 src
属性。
assert($('img:eq(1)').attr('src') === 'https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg');
确保新的 img
元素有一个闭合的尖括号。
assert(
code.match(/<img/g) &&
code.match(/<img[^<]*>/g).length === 2 &&
code.match(/<img/g).length === 2
);
--seed--
--seed-contents--
<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://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" 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>
--solutions--
<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://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" 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>