body{
margin:0;
overflow:hidden;
background:black;
font-family:monospace;
}

canvas{
image-rendering:pixelated;
}

#ui{
position:fixed;
top:10px;
left:10px;
color:white;
background:rgba(0,0,0,.6);
padding:10px;
border-radius:8px;
font-size:14px;
}