Issues with a lesson

Tell us what’s happening:
I did it exactly how the video and get section showed, however, it keeps saying I’m doing it wrong. Help??

Your code so far


.balls {
  border-radius: 50%;
  background: linear-gradient(
  position: fixed;
  width: 50px;
  height: 50px;
  margin-top: 50px;
  animation-name: bounce;
  animation-duration: 2s;
  animation-iteration-count: infinite;
#ball1 {
  animation-timing-function: linear;
#ball2 {
  animation-timing-function: ease-out;

@keyframes bounce {
  0% {
    top: 0px;
  100% {
    top: 249px;


<div class="balls" id="ball1"></div>
<div class="balls" id="ball2"></div>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362.

Challenge: Change Animation Timing with Keywords

Link to the challenge:

Hey Kristin!

Your code looks good, so I suspect it is an issue with your web browser.

If you’re using Chrome, try Firefox; and if you’re using Firefox, try Chrome.

Hopefully, that’ll fix it :slight_smile:


Thanks so much!! You were absolutely right. I was on Microsoft Edge:expressionless: but I switched to Chrome and it worked!!

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