body {
	font-family: sans-serif;
	height: 100%;
	background: #000;
}

#video {
	position: fixed;
	right: 0;
	bottom: 0;
	min-width: 100%;
	min-height: 100%;
	width: auto;
	height: auto;
}

#startDecoding {
    background: #0095DD;
    color: #fff;
    border-radius: 40px;
    padding: 20px;
    font-family: Arial, sans;
    width: 150px;
    text-align: center;
    font-size: 20px;
    position: fixed;
    left: 50%;
    top: 50%;
    margin: -30px 0 0 -95px;
}

#corner-nw,
#corner-no,
#corner-so,
#corner-sw {
    position: fixed;
    width: 30px;
    height: 30px;
    border: #fff 6px solid;
}

#corner-nw {
    border-right: 0;
    border-bottom: 0;
    border-top-left-radius: 20px;
    top: 20px;
    left: 20px;
}

#corner-no {
    border-left: 0;
    border-bottom: 0;
    border-top-right-radius: 20px;
    top: 20px;
    right: 20px;
}

#corner-so {
    border-top: 0;
    border-left: 0;
    border-bottom-right-radius: 20px;
    bottom: 20px;
    right: 20px;
}

#corner-sw {
    border-right: 0;
    border-top: 0;
    border-bottom-left-radius: 20px;
    bottom: 20px;
    left: 20px;
}