Answers for "how to add animation on hover in css"

css start animation on hover

button{
  animation: rotate360 1.2s linear infinite;  /* animation set */
  animation-play-state: paused;               /* put paused */
}
button:hover{
  animation-play-state: running;              /* trigger on hover */
}
@keyframes rotate360 {                        /* keyframes of animation */
  to { transform: rotate(360deg); }           
}

css hover animation

.YOURHTMLCONTENT i {
    height: auto;
    float: left;
    color: #fff;
    font-size: 55px;
    margin: 30px 30px 30px 30px;
    transition: 0.8s;
    transition-property: color, transform;
}

.YOURHTMLCONTENT i:hover {
    color: #FF5733;
    transform: scale(1.3);
}

how to add animation to a button hover

.btn {
  background-color: #ddd;
  border: none;
  color: black;
  padding: 16px 32px;
  text-align: center;
  font-size: 16px;
  margin: 4px 2px;
  transition: 0.3s;
}

.btn:hover {
  background-color: #3e8e41;
  color: white;
}

css hover animation

a:hover {
  color: #252525;
}