Button does not stay highlighted despite putting in the animation-fill-mode property

HTML-CSS
#1

Tell us what’s happening:
The test did not pass despite the animation-fill-mode property being added to the code. The button does not stay highlighted when I hover it.

Your code so far


<style>
button {
  border-radius: 5px;
  color: white;
  background-color: #0F5897;
  padding: 5px 10px 8px 10px;
}
button:hover {
  animation-name: background-color;
  animation-duration: 500ms;
  /* Only change code below this line */
  animation-fill-mode: fowards;
  /* Only change code above this line */
}
@keyframes background-color {
  100% {
    background-color: #4791d0;
  }
}
</style>
<button>Register</button>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36.

Challenge: Modify Fill Mode of an Animation

Link to the challenge:

#2

I SOLVED IT. I was supposed to put forwards not fowards

#3