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.

HTML How to Make a Website Responsive Web Design and Testing Refactor the Layout

hassan hassan
hassan hassan
1,897 Points

media screen and width

why this is wrong @media screen AND(min-width:480px){ #gallery li{ width: 28.3333%; } }

4 Answers

I tried out your code and see why you are getting an error. It marks it as incorrect since you are missing a space right here: ...and(min...

It should look like this: ...and (min...

Here's the full working code:

@media screen and (min-width:480px){ 
  #gallery li{ 
    width: 28.3333%; 
  } 
}
hassan hassan
hassan hassan
1,897 Points

the code is perfectly correct! the problem was that at the bottom I had a second incorrect code :@media screen and (min-width:480){ ........} this one was the one causing the error!

Dane Parchment
MOD
Dane Parchment
Treehouse Moderator 11,003 Points

Hmmm, try lowercasing the AND (change it to: and) , then put a space between it and (min-width). See if that fixes it.

hassan hassan
hassan hassan
1,897 Points

the code is perfectly correct! the problem was that at the bottom I had a second incorrect code :@media screen and (min-width:480){ ........} this one was the one causing the error!