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 Foundations Advanced Selectors Additional Pseudo-Classes

Lucas Santos
Lucas Santos
19,315 Points

Little help with this css selector question

Create a new rule using the selector that targets an element only if its ID matches the hash in a URL. Set the background color to tomato.

What I did:

div:nth-of-type([id="#"]) {
background-color: tomato;
}

The HTML they provided:

<!DOCTYPE html>
<html>
<head>
    <title>More Pseudo-classes</title>
    <link rel="stylesheet" type="text/css" href="page.css">
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
    <body>
        <ul>
            <li><a href="#s1">Section 1</a></li>
            <li><a href="#s2">Section 2</a></li>
        </ul>       
        <div id="s1">
            <h2>Section 1</h2>
            Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
            tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
            quis nostrud exercitation ullamco laboris nisi ut aliquip ex.
        </div>
        <div id="s2">
            <h2>Section 2</h2>
            Integer laoreet urna ut est cursus nec tristique elit vestibulum. In hac 
            habitasse platea dictumst. Quisque pharetra odio nec urna lobortis sed 
            ultrices dolor posuere. Sed nec nisl id augue congue euismod. 
        </div>
    </body>
</html>

4 Answers

Hi Lucas Santos,

This question is a bit tricky. Have a look at this jsFIddle</a> example: http://jsfiddle.net/ovidiuvoicu/zgG5L/

Hope it helps.

Lucas Santos
Lucas Santos
19,315 Points

I can see how this can also work with :target as well

Albert Evangelista
Albert Evangelista
27,689 Points

try this Lucas...

div:not( :empty ) { background-color: tomato; }

Lucas Santos
Lucas Santos
19,315 Points

This worked but I don't see how this would make sense. That targets any div that it not empty, not targets a div only if its ID matches the hash in a URL.

Albert Evangelista
Albert Evangelista
27,689 Points

it worked because the "<div>" that are being targetted are'nt empty. Both of them has "<h2></h2>" between them thats why they got selected. The ":target" style of selecting will work too because the hashes matches the IDs and both these styles of selecting are within the range of what is being discussed in the video. I haven't tried your "nth-of-type" code up there but its clearly not what is being taught in that particular lesson.

Lucas Santos
Lucas Santos
19,315 Points

I see ok got it thanks, btw yeah nth-of-type is covered in the video for selecting a certain type of element.

James Finn
James Finn
7,055 Points

My bad, mis-read your question. The syntax to achieve your desired result:

:target{background-color:tomato;}

Simple as that! :) Read more on :target here

Lucas Santos
Lucas Santos
19,315 Points

this works as well thanks!

James Finn
James Finn
7,055 Points

Your welcome! Thank you!

James Finn
James Finn
7,055 Points

Actually, this is the "best answer" because this is the syntax being used in the lesson. :) Ovidiu Voicu got here first, he should get it.

Lucas Santos
Lucas Santos
19,315 Points

yeah man it's kind of difficult picking a best answer when everyone here provided solutions so I just try to go based on who provided the solution first I guess.