fieldset legend {
    font-size: 1.2em;
}

input:disabled {
    opacity: .5;
}

@media (max-width: 776px) {
    .woocommerce form .form-row-first, .woocommerce form .form-row-last, .woocommerce-page form .form-row-first, .woocommerce-page form .form-row-last {
        width: 100%;
    }
}