body {
    font-family: 'Mitr', sans-serif;
}

.thumnail_image {
    background-image: linear-gradient(
            90deg,
            rgba(255, 255, 255, 1),
            rgba(255, 255, 255, 0.8)
        ),
        url(../images/bg.jfif);
}
@media (min-width: 640px) {
    .thumnail_image {
        background-image: linear-gradient(
                    90deg,
                    rgba(255, 255, 255, 1),
                    rgba(255, 255, 255, 0.8),
                    rgba(255, 255, 255, 0.2)
                ),
                url(../images/bg.jfif);
    }
}