:root {
    --white-bg: whitesmoke;
}

.flash-box {
    background-color: var(--white-bg);
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.5);
    min-width: fit-content;
    max-width: 70%;
}

.flash-cards {
    padding: 0 10px;
}

.flash-card {
    width: 370px;
    height: 200px;
    word-wrap: break-word;
    margin: 10px;
    background-color: var(--white-bg);
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.5);
}

.flash-card h2 {
    font-size: 1rem;
}

@media (max-width: 768px) {

    .flash-card {
        margin: auto;
    }

    .flash-card {
        margin-top: 10px;
        margin-bottom: 10px;
    }
}