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!

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

HTML How to Make a Website Styling Web Pages and Navigation Create a Horizontal List of Links

How do I set the top margin to 0?

I'm having trouble setting the top margin to 0. I thought the order went clockwise, starting with the top value.

css/main.css
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;
}

img {
  max-width: 100%;
}

#gallery {
  margin: 0;
  padding: 0;
  list-style: none;
}

#gallery li {
  float: left;
  width: 45%;
  margin: 2.5%;
  background-color: #f5f5f5;
  color: #bdc3c7;
}
#nav ul {
  float: left;
  margin: 0px 10px;
}

3 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Matthew,

yes, you're right. And you almost got it right. However when the value is zero it doesn't have a unit like px. Oh, and you should also target the nav element, not an element with the id of nav. So if you remove the px unit and the # in front of the nav selector it should work.

nav ul {
  float: left;
  margin: 0 10px;
}
Maximiliane Quel
PLUS
Maximiliane Quel
Courses Plus Student 55,489 Points

I think your problem is that the nav element does not have an id of nav so when you are selecting you need to select the element like so:

nav ul {
  margin: 0 10px;
}

not sure why your are setting a float left property. when I tried the challenge the first one was only about setting a margin?