Fluid design Code Challenge

what you need to do is divide the margin of filling not the width.

10 / 640 = (answer)

Could you give a link to your problem.

Im past that (figured it out), however, Im trying to convert the margins to percentages. ex. 840px / 640px = 1.25% simple enough. Now I have 640 px / 480 px which yields 1.33333333333333. What would be the correct percentage for that?

The correct percentage would just be what you've got.

Well, when taking the code challenge, I get it is not the correct answer. Have tried 1.33, 1.333, 1.3333, etc. How many decimal points do you have to put in?

Well that doesnt look right. Here is the code from the challenge:

 .icing {
    background-color: #B4C34F;
    width: 100%; /*800px*/
    padding: 10px;
  }
  .cake {
    background-color: #f8748f;
    width: 80%; /*640px*/
    margin: 1.25%;
    padding: 10px;
  }
  .filling {
    background-color: #4FB69F;
    width: 75%; /*480px*/
    margin: 1.334%;
    padding: 10px;
   }

The first margin according to the response from the challenge was correct for the first margin percent. I divided 800 by 640 and got 1.25. So I used that as the answer and was told by the test it was correct. So moving on to the next one which was 640 divided by 480. So using the answer provided above I put in 1.334%. That was not the correct answer?

Logic would tell you that if the first answer was correct you should be able to arrive at the second answer the same way. Am I missing something?

So is it 4.8 or 6.4 ? Still not sure what you mean.