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CSS

Be sure to set the margin for gallery list items to 2.5%.

Why i'm getting that bummer warning if my code looks like this:

#gallery li {
  float: left;
  width: 45%;
  margin: 2,5%;
  color: #fff;
  background-color: #000;
}

I went ahead and edited you code take a look at markdown cheatsheet it's also located below every post. Also if that does not help here a Simple guide as to how to post your code on the forum.

How to Post Code to the Treehouse Forum

3 Answers

You have typed a comma instead of a period were it says 2.5%

tnx! i wouldn't noticed this by myself

Not a problem most of the time the errors are typos.

tnx!