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

Hi guys, What does it mean to fill the parent element?

Little bit stuck, can someone clarify what does it mean to fill the element?

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: Changa One, sans-serif;
  font-size: 1.75em;
  font-weight: normal;

img {
max-width: 45%;
  margin: 2.5%;
Jenna Dercole
Jenna Dercole
30,224 Points

Hey Dmitriy,

Really what you need to know is that the percentage you assign to any element's max-width property will refer to how wide you want that element to be in reference to whichever element it's nested in.

For example, the <body> element would be the parent of the img here, as the img is nested within it:

                   <img src="something.jpg" />

So if you assign img's max-width property to be 45%, that image will only take up 45% of the body's defined width.

Hopefully this helps!

2 Answers

For example. If an unordered list was inside a section element. The unordered list filling parent means it would take up the same amount of width as the section element itself takes up.

Thanks, got it