ae79525493
* Added missing period On line 24, just before "Note that in your CSS..." a period was missing. * Removed single quotes and added a missing period On line 24, just before "Note that in your CSS..." there is a missing period. On line 30, the text "red-text" within a code tag is enclosed in single quotes.
143 lines
3.6 KiB
Markdown
143 lines
3.6 KiB
Markdown
---
|
|
id: bad87fee1348bd9aecf08806
|
|
title: Use a CSS Class to Style an Element
|
|
challengeType: 0
|
|
videoUrl: 'https://scrimba.com/c/c2MvDtV'
|
|
forumTopicId: 18337
|
|
dashedName: use-a-css-class-to-style-an-element
|
|
---
|
|
|
|
# --description--
|
|
|
|
Classes are reusable styles that can be added to HTML elements.
|
|
|
|
Here's an example CSS class declaration:
|
|
|
|
```html
|
|
<style>
|
|
.blue-text {
|
|
color: blue;
|
|
}
|
|
</style>
|
|
```
|
|
|
|
You can see that we've created a CSS class called `blue-text` within the `<style>` tag. You can apply a class to an HTML element like this: `<h2 class="blue-text">CatPhotoApp</h2>`. Note that in your CSS `style` element, class names start with a period. In your HTML elements' class attribute, the class name does not include the period.
|
|
|
|
# --instructions--
|
|
|
|
Inside your `style` element, change the `h2` selector to `.red-text` and update the color's value from `blue` to `red`.
|
|
|
|
Give your `h2` element the `class` attribute with a value of `red-text`.
|
|
|
|
# --hints--
|
|
|
|
Your `h2` element should be red.
|
|
|
|
```js
|
|
assert($('h2').css('color') === 'rgb(255, 0, 0)');
|
|
```
|
|
|
|
Your `h2` element should have the class `red-text`.
|
|
|
|
```js
|
|
assert($('h2').hasClass('red-text'));
|
|
```
|
|
|
|
Your stylesheet should declare a `red-text` class and have its color set to `red`.
|
|
|
|
```js
|
|
assert(code.match(/\.red-text\s*\{\s*color\s*:\s*red;\s*\}/g));
|
|
```
|
|
|
|
You should not use inline style declarations like `style="color: red"` in your `h2` element.
|
|
|
|
```js
|
|
assert($('h2').attr('style') === undefined);
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```html
|
|
<style>
|
|
h2 {
|
|
color: blue;
|
|
}
|
|
</style>
|
|
|
|
<h2>CatPhotoApp</h2>
|
|
<main>
|
|
<p>Click here to view more <a href="#">cat photos</a>.</p>
|
|
|
|
<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" 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--
|
|
|
|
```html
|
|
<style>
|
|
.red-text {
|
|
color: red;
|
|
}
|
|
</style>
|
|
|
|
<h2 class="red-text">CatPhotoApp</h2>
|
|
<main>
|
|
<p>Click here to view more <a href="#">cat photos</a>.</p>
|
|
|
|
<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" 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>
|
|
```
|