Use CSS Animation to Change the Hover State of a Button help!

Tell us what’s happening:
I’m having trouble figuring out how am i doing this wrong on the first task that says " The @keyframes rule should use the animation-name background-color. "

Your code so far

  button {
    border-radius: 5px;
    color: white;
    background-color: #0F5897;
    padding: 5px 10px 8px 10px;
  button:hover {
    animation-name: background-color;
    animation-duration: 500ms;
  @keyframes background-color; {
    100% {
      background-color: #4791d0;

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36.

Link to the challenge:

You need to remove the semicolon after background-color in @keyframes background-color; {


Thanks my friend. i really appreciate your help!