#wrapper {
    align-items: center;
    justify-content: center;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: var(--page-width);
    width: 100%;
    padding: 0 20px;
    justify-content: center;
}

.iframe {
    position: relative;
    overflow: hidden;
    width: 100%;
}
.iframe.pdg {
    padding-top: 50%;
}

.iframe iframe {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
}

.thumbnail {
    padding-top: 38%;
    padding-bottom: 0 !important;
}

@media screen and (max-width: 550px) {
    main {
        padding: 0 15px;
    }

    .thumbnail {
        padding-top: 50%;
    }
}