98 lines
2.4 KiB
Markdown
98 lines
2.4 KiB
Markdown
---
|
|
id: 587d781c367417b2b2512abf
|
|
title: Decrease the Opacity of an Element
|
|
challengeType: 0
|
|
videoUrl: 'https://scrimba.com/c/c7aKqu4'
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
The <code>opacity</code> property in CSS is used to adjust the opacity, or conversely, the transparency for an item.
|
|
<blockquote>A value of 1 is opaque, which isn't transparent at all.<br>A value of 0.5 is half see-through.<br>A value of 0 is completely transparent.</blockquote>
|
|
The value given will apply to the entire element, whether that's an image with some transparency, or the foreground and background colors for a block of text.
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Set the <code>opacity</code> of the anchor tags to 0.7 using <code>links</code> class to select them.
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: Your code should set the <code>opacity</code> property to 0.7 on the anchor tags by selecting the class of <code>links</code>.
|
|
testString: assert.approximately(parseFloat($('.links').css('opacity')), 0.7, 0.1, 'Your code should set the <code>opacity</code> property to 0.7 on the anchor tags by selecting the class of <code>links</code>.');
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='html-seed'>
|
|
|
|
```html
|
|
<style>
|
|
h4 {
|
|
text-align: center;
|
|
background-color: rgba(45, 45, 45, 0.1);
|
|
padding: 10px;
|
|
font-size: 27px;
|
|
}
|
|
p {
|
|
text-align: justify;
|
|
}
|
|
.links {
|
|
text-align: left;
|
|
color: black;
|
|
|
|
}
|
|
#thumbnail {
|
|
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
|
|
}
|
|
.fullCard {
|
|
width: 245px;
|
|
border: 1px solid #ccc;
|
|
border-radius: 5px;
|
|
margin: 10px 5px;
|
|
padding: 4px;
|
|
}
|
|
.cardContent {
|
|
padding: 10px;
|
|
}
|
|
.cardText {
|
|
margin-bottom: 30px;
|
|
}
|
|
</style>
|
|
<div class="fullCard" id="thumbnail">
|
|
<div class="cardContent">
|
|
<div class="cardText">
|
|
<h4>Alphabet</h4>
|
|
<hr>
|
|
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
|
|
</div>
|
|
<div class="cardLinks">
|
|
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
|
|
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
</section>
|