.shiny {
    position: relative;
    overflow: hidden;
}

    .shiny:before {
        content: '';
        position: absolute;
        width: 50px;
        height: 200%;
        background-color: rgba(255, 255, 255, 0.1);
        top: -50%;
        left: -150px;
        transform: rotate(20deg);
        animation: shine 5s infinite linear;
        pointer-events: none;
    }

@keyframes shine {
    0% {
        left: -110%;
    }

    25% {
        left: 110%;
    }

    100% {
        left: 110%;
    }
}