body{
    text-align:center;
    font-family:Arial;
    background:#f3f5f9;
}

h1{
    color:#1a73e8;
}

.container{
    position:relative;
    display:inline-block;
}

video{
    width:720px;
    border-radius:10px;
}

canvas{
    position:absolute;
    top:0;
    left:0;
}

#count{
    margin-top:20px;
    font-size:24px;
}