form {
    border: 1px solid black;
    width: 400px;
    margin: auto;
    padding: 10px;
}

.subtitle {
    font-size: medium;
}

fieldset {
    border-color: azure;
}

legend {
    font-size: medium;
}

.mail-star {
    color: red;
}

.pwd-star {
    color: red;
}

.male:hover,
.female:hover {
    color: purple;
    cursor:pointer
}