body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}
#join-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

#roomInput,
#joinButton {
    padding: 10px;
    margin: 10px;
    font-size: 1.2em;
}


#videoZone {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;

    & > .videoContainer {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        width: calc(100/3 - 20px);
    }
}

video {
    margin: 10px;
    width: 100%;
    border: 2px solid #333;
    background-color: #000;
}

@media screen and (max-width: 600px) {
    #videoZone > .videoContainer {
        width: calc(100/2 - 20px);
    }
    
}