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 How to Make a Website Styling Web Pages and Navigation Make a CSS Image Gallery

I dont understand what this challenge question is asking me. Please explain?

I try doing:

gallery {

width: 100% }

thats what i thought it was. If it's not, please explain and help

a {
  text-decoration: none;

#wrapper {
  max-width: 940px;
  margin: 0 auto;

#logo {
  text-align: center;
  margin: 0;

h1, h2 {
  color: #fff;

nav a {
  color: #fff;

nav a:hover {
  color: #32673f;

h1 {
  font-family: β€˜Changa One’, sans-serif;
  font-size: 1.75em;
  font-weight: normal;

#gallery img {
 width: 100%

2 Answers

The question was to to make all images fill their parent elements.

max-width: 100%;
Alexander Dolgan
Alexander Dolgan
5,208 Points

min-width:100% fill their parent elements?

Jane Marianne Filipiak
Jane Marianne Filipiak
7,444 Points

Hi Maxym, You have to add 'max-width', not 'width' for images. The percentage-size will be that of the container that holds the image. The 'container' is the parent element of the image. The 'parent element' would usually be specified on the html page as a 'div' element, such as 'body, footer'. The ID selector #gallery is part of a css rule that declares properties for lists, captions, navigation links, plus its borders, margins and padding.

Hoping this helps you. Jane