body{
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
h1{
    position: absolute;
    right: 45%;
    top: 1%;
    color: rgb(44, 62, 62);
}
.main{
    margin-top: 60px;
    width: 350px;
    height: 600px;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 5px 20px 50px rgba(0, 0, 0, 0.623);
}
#chk{
    display: none;
}
.signup{
    position: relative;
    width: 100%;
    height: 100%;
}
.signup label{
    color: #573b8a;
}
label{
    color: #fff;
    font-size: 2.3em;
    justify-content: center;
    display: flex;
    margin: 60px;
    font-weight: bold;
    cursor: pointer;
    transition: .5s ease-in-out;
}
input{
    width: 60%;
    height: 20px;
    background: #e0dede;
    justify-content: center;
    display: flex;
    margin: 20px auto;
    padding: 10px;
    border: none;
    outline: none;
    border-radius: 5px;
}
button{
    width: 60%;
    height: 40px;
    margin: 10px auto;
    justify-content: center;
    display: block;
    color: #fff;
    background: #573b8a;
    font-size: 1em;
    font-weight: bold;
    margin-top: 20px;
    outline: none;
    border: none;
    border-radius: 5px;
    transition: .2s ease-in;
    cursor: pointer;
}
button:hover{
    background: #6d44b8;
}
.login{
    height: 460px;
    background: #eee;
    border-radius: 60% / 10%;
    transform: translateY(-180px);
    transition: .8s ease-in-out;
}
.login label{
    color: #573b8a;
    
}
#chk:checked ~ .login{
    transform: translateY(-500px);
}
#chk:checked ~ .login label{
    transform: scale(1);
}
#chk:checked ~ .signup label{
    transform: scale(.6);
}