Create Movement Using CSS Animation 10% not working

HTML-CSS
1

Tell us what’s happening:
i followed the instruction well but it didn’t work.

Your code so far


<style>
  div {
    height: 40px;
    width: 70%;
    background: black;
    margin: 50px auto;
    border-radius: 5px;
    position: relative;
  }

#rect {
  animation-name: rainbow;
  animation-duration: 4s;
}

@keyframes rainbow {
  0% {
    background-color: blue;
    left: 0px;
    
  }
  50% {
    background-color: green;
    left: 25px;
    
  }
  100% {
    background-color:  yellow;
    left: -25px;
    
  }
}
</style>

<div id="rect"></div>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0.

Link to the challenge:
https://learn.freecodecamp.org/responsive-web-design/applied-visual-design/create-movement-using-css-animation

2

Ensure you are reading the instructions carefully.

Don’t replace the top property in the editor

Looks like you removed top properties.

3

i just remove but its not working

4

can you share your code? You aren’t supposed to remove the top properties.