signupStyle.css

*{
    margin: 0;
    padding: 0;
}

html, body{
    background-color: #131313;
    font-family: Arial, Helvetica, sans-serif;
}

h1{
    font-size: 60px;
    color: white;
    text-align: center;
    margin-top: 5%;
    font-family: Impact, Charcoal, sans-serif;

}

.signup-form{
    border-radius: 20px;
    border: 1px solid black;
    height: 700px;
    width: 500px;
    margin: 0 auto;
    margin-top: 20px;
    color: white;
}

.signup-form h2{
    margin: 0 0 30px;
    padding: 50px 0;
    color: #fff;
    text-align: center;
}

.signup-form .user-box{
    position: relative;
    text-align: center;
}

.signup-form .user-box input{
    width: 80%;
    padding: 10px 0;
    font-size: 16px;
    border: none;
    border-bottom: 1px solid white;
    margin-bottom: 30px;
    color: #fff;
    outline: none;
    background: transparent;
}

.signup-form .user-box label{
    margin-left: 50px;
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: white;
    pointer-events: none;
    transition: .9s;
}

.signup-form .user-box input:focus ~ label,
.signup-form .user-box input:valid ~ label{
    top: -20px;
    left: 0;
    color: #03e9f4;
    font-size: 12px;
}

button{
    background-color: greenyellow;
    color: black;
    border-radius: 20px;
    padding: 10px 30px;
    margin-left: 50px;
    border: none;
    outline: none;
}

button:hover{
    padding: 15px 35px;
    transition: .5s;
    font-size: 13px;
    cursor: pointer;
}

p{
    margin-left: 50px;
    margin-top: 10px;
    font-size: 13px;
}

p a:hover{
    color: violet;
}

p a{
    padding-left: 6px;
    color: rgb(80, 0, 80);
}