Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

davide totaro
5,559 PointsWe want three floated images per row. In the media query, create a pseudo-class selector that targets the fourth img chi
i don 't figure out the problem!
/* Write the CSS in the media query below */
@media (min-width: 607px) {
img{
float:left;
}
img :nth-child(3n+1){
clear:left;
}
}
<!DOCTYPE html>
<html>
<head>
<title>Selectors</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="page.css">
<link rel="stylesheet" href="style.css">
</head>
<body>
<img src="thumb-forest.jpg" alt="">
<img src="thumb-resort.jpg" alt="">
<img src="thumb-trees.jpg" alt="">
<img src="thumb-falls.jpg" alt="">
<img src="thumb-view.jpg" alt="">
<img src="thumb-sunset.jpg" alt="">
<img src="thumb-lake.jpg" alt="">
<img src="thumb-beach.jpg" alt="">
<img src="thumb-bay.jpg" alt="">
<img src="thumb-peaks.jpg" alt="">
<img src="thumb-falls.jpg" alt="">
<img src="thumb-resort.jpg" alt="">
</body>
</html>
6 Answers

Clinton Johnson
28,713 Pointsimg:nth-child(3n+4) { clear: left; }

moonshine
8,449 Points3×0 + 1 = 3 and 3×1 + 1 = 4
or
3×0 + 4 = 4 and 3×1 + 4 = 7

Bradley Davis
5,906 PointsHey Davide,
Why don't you wrap divs around the images and then make those divs width: 33%; This will only allow 3 images on one row at a time.
then you can use media queries to change the amount of images you can have on a line the skinnier your browser gets.
eg.
html:
<div class="img-container"> <img src="thumb-beach.jpg" alt=""> </div>
css:
.img-container { width: 33.333%; }
@media only screen and (max-width: 780px) {
.img-container {
width: 50%;
}
}
@media only screen and (max-width: 480px) {
.img-container {
width: 100%;
}
}
You can also set your image widths inside the .img-container as well to give even more flexibility.
Hope this helps!

lucyzhou
18,793 PointsCan anyone help me on this? I can't figure out what's wrong with my coding:
@media (min-width: 607px) { img { float: left; }
img:nth-child (3n+4 ) { clear: left; } }

Kern Tallett
10,012 PointsLucy in the off chance you are still stuck, it is because you had a space between nth-child and the brackets. It should be img:nth-child(3n+4)

knowledge tirivanhu
10,125 Pointsimg :nth-child(3n+1){ clear:left;

benoit koch
3,875 Points@media (min-width: 607px) { img { float: left; }
img:nth-child(3n+4) { clear: left; } }