#membership-form {
    background: #fff;
    padding: 20px;
    border: 2px solid #0050a2;
    border-radius: 5px;
    width: 100%;
    max-width: 1200px;
    margin: auto;
    font-family: sans-serif;
}
#membership-form input, #membership-form textarea, #membership-form button {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    padding: 8px;
}
#membership-form label {
    font-weight: bold;
    color: #0050a2;
}