.h2-md:before{
    content: '';
    position: absolute;
    height: 100%;
    width: 120%;
    left: 120%;
    color: linear-gradient(90deg, transparent 0%, rgb(218, 244, 255) 5%, rgb(218, 244, 255)100%);
    animation: animate 10s linear forwards;
}
@keyframes animate{
    0%{
        left: -20%;
    }
    50%{
        left: 120%;
    }
    100%{
        left: -20%;
    }
}
    