form label,
form input {
    display: block;
    margin-top: 0.5rem;
}
form input {
    border: 2px solid grey;
    padding: 0.25rem 0.5rem;
    width: calc(100% - 1rem);
    font-size: 1.1rem;
    outline: none;
    transition: 0.5s;
}
form input:focus {
    border: 2px solid #222;
}
form button {
    display: block;
    border: 1px solid #000;
    background-color: #000;
    padding: 0.5rem 0.75rem;
    margin: 2rem auto 0 auto;
    width: 8rem;
    color: white;
    font-size: 1.2rem;
}