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

CSS CSS Selectors Going Further with Attribute Selectors and Pseudo-Classes :first-child and :last-child Challenge

Heidi S Wolff
Heidi S Wolff
12,757 Points
Posted by Heidi S Wolff
Heidi S Wolff
12,757 Points

:first-child and :last-child Challenge

Can some please look at this? It says that I haven't set the border to none but I have set it to none.

https://teamtreehouse.com/library/css-selectors/going-further-with-attribute-selectors-and-pseudoclasses/firstchild-and-lastchild-challenge

style.css 
/* Complete the challenge by writing CSS below */
.main-nav {
  li:first-child {
    border: none;
  }
  .main-nav {
    border-radius: 0 0 5px 5px;
  }
index.html 
<!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="page.css">
  <link rel="stylesheet" href="style.css">
</head>
<body>
    <header>
      <h1>My Site!</h1>
      <ul class="main-nav">
        <li><a href="#">Home</a></li>
        <li><a href="#">About</a></li>
        <li><a href="#">Work</a></li>
        <li><a href="#">Contact</a></li>
      </ul>
    </header>
    <div>
      <p>Tattooed viral put a bird on it skateboard. Drinking vinegar locavore squid farm-to-table, dreamcatcher tattooed kitsch scenester. Tousled wolf squid Wes Anderson PBR, Williamsburg banh mi dreamcatcher stumptown ethnic sartorial mlkshk. Hella mixtape bespoke mustache Bushwick. Post-ironic hashtag jean shorts, Truffaut organic roof party pop-up wayfarers selvage narwhal. Mixtape roof party twee, post-ironic bespoke hella artisan meggings Carles brunch pop-up Tonx street art normcore. DIY paleo slow-carb occupy tofu fingerstache.</p>
    </div>
</body>
</html>

4 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

The border setting is good, but you have other issues:

  • you have a stray brace in your descendant selector, it should be ".main-nav li:first-child"
  • there should be only one rule for both properties, but border-radius is in a separate rule here
  • it's OK to use the shorthand notation for border-radius, but the order of the values should be:
          top-left   top-right   bottom-right   bottom-left
Rich Donnellan
MOD
Rich Donnellan
Treehouse Moderator 27,696 Points
Rich Donnellan
Rich Donnellan
Treehouse Moderator 27,696 Points

Hi, Heidi –

The challenge is somewhat worded in a confusing manner; "in" refers to using a descendant selector. That said, you should only be declaring your selector once, and including the properties/values as instructed in the challenge.

Hint: You'll need to use the longhand version for the border-radius properties task.

Hope this helps!

Heidi S Wolff
Heidi S Wolff
12,757 Points
Heidi S Wolff
Heidi S Wolff
12,757 Points

Thanks Rich. Here's what I did. The challenge is saying that I need to set the border to none which is what I did in the line above.

I had everything together the first time and I got the error message; that's why I separated the two thinking that's what the challenge wanted.

https://teamtreehouse.com/library/css-selectors/going-further-with-attribute-selectors-and-pseudoclasses/firstchild-and-lastchild-challenge