Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Eddie Harmon
17,094 PointsUnexpected result when using :empty
While coding along with the video during the :empty explanation, I simply added an <h1></h1> with nothing inside of it. Yet, it did not turn the <h1> tomato as expected. Why is this? My code is below:
<!DOCTYPE html>
<html>
<head>
<title>Selectors</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href='http://fonts.googleapis.com/css?family=Nunito:400,300' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="css/style.css">
<style>
body {
font-family: 'Nunito', sans-serif;
color: #616161;
padding: 40px 0;
}
h1 {
text-align: center;
}
ul {
list-style: none;
width: 50%;
margin: auto;
}
li {
border-bottom: 1px dotted #40918c;
padding: 15px 10px;
}
</style>
</head>
<body>
<h1></h1>
<ul>
<li>Item 1</li>
<li>Item 2 <span>✓</span></li>
<li>Item 3</li>
<li>Item 4</li>
<li>Item 5</li>
<li>Item 6 <span>✓</span></li>
<li></li>
<li>Item 8</li>
<li>Item 9</li>
<li>Item 10</li>
</ul>
</body>
</html>
BELOW IS THE CSS
li:first-child { background: #52bab3; color: white; }
li:last-child { border: none; }
span:only-child { color: #52bab3; font-size: 1.5em; }
:empty { background-color: tomato; }
1 Answer
Steven Parker
231,275 PointsWhen the element is empty, the height collapses so there isn't any background showing. But you could force a minimum height to make it visible:
:empty {
background-color: tomato;
height: 1em;
}
Eddie Harmon
17,094 PointsEddie Harmon
17,094 PointsThanks so much, Steven! That is the tricky thing about code: you can be using a concept completely right, but if you don't know all of the "side-effects" of an action, it can rob a ton of your time and energy and trick you into believing you are doing something wrong. Thanks for clarifying this for me!