#interaction{
    position: absolute;
    top: 20px;
    right: 20px;
    width: 200px;
    height: 40px;
    background: #F0EEA6;
    color: black;
    font-size: 20px;
    padding: 6px;
    text-align: center;
}

#right,
#left{
    height: 100%;
    width: 50%;
    position: absolute;
    top: 0;
    z-index: 10;
}

#left{
    left: 0;
}

#right{
    right: 0;
}

canvas{
    display: block;
}