.m-preview__grid {
    display: flex;
    gap: var(--gap-20);
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
}

.m-preview__grid > div {
    flex: 1 1 300px;
    min-width: 300px;
    max-width: 600px;
}

/* Default iframe container */
.iframe-container {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
    height: 0;
    overflow: hidden;
}

.iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.iframe-container--chat {
    padding-bottom: 150%;
}