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

JavaScript JavaScript and the DOM Getting a Handle on the DOM Return Elements Using CSS Selectors

Posted by Frank Grillo
.a{fill-rule:evenodd;}techdegree seal-36
Frank Grillo
Front End Web Development Techdegree Graduate 16,715 Points

Returning Elements Using CSS selectors

Is this how to do this exercise?

app.js 
let navigationLinks = document.querySelectorAll("nav a");
let galleryLinks = document.querySelectorAll("gallery a ul");
let footerImages;
index.html 
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Treehouse Student | Designer</title>
    <link rel="stylesheet" href="css/normalize.css">
    <link href='http://fonts.googleapis.com/css?family=Changa+One|Open+Sans:400italic,700italic,400,700,800' rel='stylesheet' type='text/css'>
    <link rel="stylesheet" href="css/main.css">
    <link rel="stylesheet" href="css/responsive.css">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>
  <body>
    <header>
      <a href="index.html" id="logo">
        <h1>Treehouse Student</h1>
        <h2>Designer</h2>
      </a>
      <nav>
        <ul>
          <li><a href="#" class="selected">Work</a></li>
          <li><a href="#">About</a></li>
          <li><a href="#">Contact</a></li>
        </ul>
      </nav>
    </header>
    <div id="wrapper">
      <section>
        <ul id="gallery">
          <li>
            <a href="#">
              <img src="img/numbers-01.jpg" alt="The number 1 painted with colors and textures.">
              <p>Experimentation with color and texture.</p>
            </a>
          </li>
          <li>
            <a href="#">
              <img src="img/numbers-02.jpg" alt="The number 2 painted with various colors blended together.">
              <p>Playing with blending modes in Photoshop.</p>
            </a>
          </li>
        </ul>
      </section>
      <footer>
        <a href="https://twitter.com/treehouse"><img src="img/twitter-wrap.png" alt="Twitter Logo" class="social-icon"></a>
        <a href="https://www.facebook.com/TeamTreehouse"><img src="img/facebook-wrap.png" alt="Facebook Logo" class="social-icon"></a>
        <p>&copy; Treehouse Student.</p>
      </footer>
    </div>
    <script src="app.js"></script>
  </body>
</html>

1 Answer

John Kennedy
John Kennedy
7,895 Points

What does the exercise ask you to do? One thing that I am noticing is that you need to select your elements in your query selectors the same way that you would do so in normal CSS, for example, where you've selected 'gallery' it should be written as #gallery since you are selecting by id. Descendant selectors should follow their normal CSS syntax as well.