.userBannerLight:before,.userBanner--staff:before {
    content: "";
    position: absolute;
    background: linear-gradient(135deg, transparent 0%, transparent 30%, rgba(250,250,250,0.7) 50%, transparent 70%, transparent 100%);
    background-repeat: no-repeat;
    top: 0px;
    left: -80%;
    width: 100%;
    height: 100%;
    animation: light 2.5s infinite
}

@media (max-width: 990px) {
    .message:not(.message--forceColumns) .message-userBanner.userBanner.userBannerLight,.message:not(.message--forceColumns) .message-userBanner.userBanner.userBanner--staff {
        text-align:center;
        display: block;
        margin: 3px
    }
}

.userBanner--staff {
    background: #1ba39c !important;
    color: #fff !important;
    width: 108px
}

@keyframes light {
    0% {
        left: -80%
    }

    100% {
        left: 80%
    }
}