@media screen and (max-width: 400px) {
    #paypal-button-container {
        width: 100%;
    }
}

@media screen and (min-width: 400px) {
    #paypal-button-container {
        width: 300px;
    }
}


.registration-page {
    border: 2px solid #000;
    padding: 20px 10px;
    background: #f2f2f2;
    box-shadow: 0px 0px 10px 0px #484848;
    width: 80%;
    margin: 130px auto 10px;
}

.content-top strong {
    font-size: 18px;
}

.form-control, .input-group-addon:first-child, input[type="text"], .form-group label {
    font-size: 16px;
}

.form-control.max-width{
    max-width:465px;
}