* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: black;
}

.container {
    display: flex;
    width: 100%;
    height: 100%;
}

.chat, .video {
    height: 100%;
}

.chat {
    width: 340px;
    flex-shrink: 0;
}

.video {
    flex-grow: 1;
}

.chat iframe, .video iframe {
    width: 100%;
    height: 100%;
}

/* Mobile View */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .video {
        height: 35%;
        width: 100%;
    }

    .chat {
        height: 65%;
        width: 100%;
    }
}