body{

margin:0;
font-family:Arial;
background:#111;
color:white;
text-align:center;

}

header{

background:#222;
padding:15px;
font-size:20px;

}

video{

width:100%;
max-height:60vh;
background:black;

}

canvas{

display:none;

}

button{

padding:15px;
margin:10px;
font-size:16px;
background:#00c853;
border:none;
border-radius:8px;
color:white;

}

#preview img{

width:90%;
margin:10px;

}