.button--loading {
    position: relative !important;
    color: transparent !important;
    pointer-events: none !important;
    opacity: 0.8 !important;
}

.button--loading::after {
    content: "" !important;
    position: absolute !important;
    width: 18px !important;
    height: 18px !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    margin: auto !important;
    border: 2px solid transparent !important;
    border-top-color: #ffffff !important;
    border-radius: 50% !important;
    animation: button-loading-spinner 0.6s linear infinite !important;
}

@keyframes button-loading-spinner {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}