The background color doesn’t let you see the animation, just comment it;
form {
height: 500px;
width: 400px;
/*background-color: #f4f7fc;*/
border: 2px solid;
border-radius: 10px;
box-shadow:8px 8px 5px;
text-align: center;
}
4
solved Why the same button animation cannot use inside form?