4.5 KiB
4.5 KiB
id | title | challengeType | videoUrl | forumTopicId | dashedName |
---|---|---|---|---|---|
bad87fee1348bd9bedf08813 | 在元素周围添加边框 | 0 | https://scrimba.com/c/c2MvnHZ | 16630 | add-borders-around-your-elements |
--description--
CSS 边框具有 style
、color
、width
属性。
假如我们要将一个 HTML 元素边框设置为 5px 的红色实线边框,我们可以这样做:
<style>
.thin-red-border {
border-color: red;
border-width: 5px;
border-style: solid;
}
</style>
--instructions--
创建一个名为 thick-green-border
的 class, 该 class 应在 HTML 元素周围添加一个 10px 的绿色实线边框。 将这个 class 应用于你的猫图。
记得在一个元素上可以同时应用多个 class
,使用空格来分隔不同 class 即可, 例如:
<img class="class1 class2">
--hints--
img
元素的 class 应包含 smaller-image
。
assert($('img').hasClass('smaller-image'));
img
元素应包含 thick-green-border
class。
assert($('img').hasClass('thick-green-border'));
图片边框宽度应设置为 10px
。
assert(
$('img').hasClass('thick-green-border') &&
parseInt($('img').css('border-top-width'), 10) >= 8 &&
parseInt($('img').css('border-top-width'), 10) <= 12
);
图片边框样式应为 solid
实线。
assert($('img').css('border-right-style') === 'solid');
img
元素的边框颜色应为绿色。
assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
--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;
}
.smaller-image {
width: 100px;
}
</style>
<h2 class="red-text">CatPhotoApp</h2>
<main>
<p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
<a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
<div>
<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>
</div>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
<label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
<label><input type="checkbox" name="personality" checked> Loving</label>
<label><input type="checkbox" name="personality"> Lazy</label>
<label><input type="checkbox" name="personality"> Energetic</label><br>
<input type="text" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</main>
--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;
}
.smaller-image {
width: 100px;
}
.thick-green-border {
border-width: 10px;
border-color: green;
border-style: solid;
}
</style>
<h2 class="red-text">CatPhotoApp</h2>
<main>
<p class="red-text">Click here to view more <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>
<div>
<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>
</div>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
<label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
<label><input type="checkbox" name="personality" checked> Loving</label>
<label><input type="checkbox" name="personality"> Lazy</label>
<label><input type="checkbox" name="personality"> Energetic</label><br>
<input type="text" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</main>