.woocommerce-checkout.woocommerce-application-checkout-page header,
.woocommerce-checkout.woocommerce-application-checkout-page .checkout-fixed-header,
body.woocommerce-checkout.woocommerce-application-checkout-page .fixed-nav-bar,
.woocommerce-checkout.woocommerce-application-checkout-page .site-footer{
    display: none !important;
}
 
.woocommerce-checkout.woocommerce-application-checkout-page .site-content {
    margin-top: -20px;
    margin-bottom: 75px;
}


.woocommerce-checkout.woocommerce-application-checkout-page.woocommerce-checkout-payment-page .checkout-fixed-header {
    display: block !important;
}


.woocommerce-checkout.woocommerce-application-checkout-page.woocommerce-checkout-payment-page .fixed-nav-bar {
    top: 0;
}

.woocommerce-checkout.woocommerce-application-checkout-page.woocommerce-checkout-payment-page .site-content {
    margin-top: 40px;
    margin-bottom: 121px;
}