body{
    background: black;
}
#container{
    width:400px;
    margin:0 auto;
  -webkit-transform: scale3d(0, 0, 0);
          transform: scale3d(0, 0, 0);
  -webkit-animation: appear 10s linear forwards;
          animation: appear 10s linear forwards;
}
form {
    width:100%;
    padding: 30px;
    border: 1px solid #f1f1f1;
    background: #fff;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
#container h1{
    width: 38%;
    margin: 0 auto;
    padding-bottom: 10px;
}
input[type=text], input[type=password], input[type=email] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
}
input[type=submit] {
    background-color: #53af57;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
}
input[type=submit]:hover {
    background-color: white;
    color: #53af57;
    border: 1px solid #53af57;
}