body {
    background-color: purple; padding: 80px; text-align: center; vertical-align: middle;
    }

h1 {
    color: black; font-family: Arial; font-size: 40px; text-align: center; vertical-align: middle;
    }

p {
    color: black; font-size: 16px; text-align: center; vertical-align: middle;
    }

form {
    width: fit-content; margin: 0 auto;
    }

input[type="submit"] {display: block; margin: 0 auto;
    }