.checkout.woocommerce-checkout.processing:before {
    position: absolute;
    z-index: 1;
    top: 50%;
    float: left;
    left: 40%;
    width: 100%;
    height: 100%;
    background: url(/wp-content/plugins/championsukplc_lloyds_cardnet_payment_pugin/images/loader.gif) !important;
    background-repeat: no-repeat !important;
    content: "";
    line-height: 100%;
}
.checkout.woocommerce-checkout.processing{
    opacity: 0.5;
}