Fade property is not working

Tell us what’s happening:

Your code so far


  #ball {
    width: 70px;
    height: 70px;
    margin: 50px auto;
    position: fixed;
    left: 20%;
    border-radius: 50%;
    background: linear-gradient(
    animation-name: fade;
    animation-duration: 3s;
  @keyframes fade{0.1{50%;}

  @keyframes fade {50%(0.1) {
      right: 60%;


<div id="ball"></div>

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/61.0.

Link to the challenge:

Dude, don’t create duplicate posts, i have given you the solution in the previous post which you had created

ok i deleted that but still not working

Reset your code, and add just one line to the keyframe inside 50% below the left: 60% property,
set opacity property to 0.1