form {
    border-radius: 10px;
    background-color: rgb(237,237,237);
    padding: 10%;
}
form h2{
    text-align: center;
    margin-bottom: 1.05em;
}

@media screen and (max-width: 768px)
{
    form h2{
        text-align: center;
        margin-bottom: 1.05em;
        font-size: 25px;
    }
}

#code{
    color: red;
    font-weight: bold;
    display: inline;
}