* {
    box-sizing: border-box;
}

body {
    font-size: 20px;
    max-width: 1280px;
    margin: auto;
    padding: 1em;
}

img {
    max-width: 100%;
}

.main-nav {
    display: flex;
    justify-content: flex-end;
    list-style-type: none;
}

.main-nav li {
    padding: 0px 5px;
}

hr {
    margin-top: 50px;
}

@media (min-width: 768px) {

    .gallery-container {
        display: flex;
        flex-direction: column;
    }

    .gallery {
        display: flex;
        flex-wrap: wrap;
    }

    .gallery .media-card {
        width: 50%;
    }

    .media-card {
        max-width: 100%;
        display: flex;
    }

    .media-card-content {
        padding-left: 20px;
    }
}